Home / 145,168,187.20-217,752,280.80-131,731,259.20

Finding the Fourth Proportional to 145,168,187.20, 217,752,280.80 and 131,731,259.20

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Solution

The fourth proportional to 145,168,187.20, 217,752,280.80 and 131,731,259.20 is: 197,596,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,168,187.20 : 217,752,280.80 = 131,731,259.20 : x
  2. Step 2: Convert to fraction form
    145,168,187.20/217,752,280.80 = 131,731,259.20/x
  3. Step 3: Cross multiply
    145,168,187.20x = 217,752,280.80 × 131,731,259.20
  4. Step 4: Simplify right side
    145,168,187.20x = 28,684,782,143,455,984
  5. Step 5: Solve for x
    x = 28,684,782,143,455,984/145,168,187.20
  6. Step 6: Final answer
    x = 197,596,888.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.