Home / 145,975.98-218,975.50-46,143.78

Finding the Fourth Proportional to 145,975.98, 218,975.50 and 46,143.78

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Solution

The fourth proportional to 145,975.98, 218,975.50 and 46,143.78 is: 69,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,975.98 : 218,975.50 = 46,143.78 : x
  2. Step 2: Convert to fraction form
    145,975.98/218,975.50 = 46,143.78/x
  3. Step 3: Cross multiply
    145,975.98x = 218,975.50 × 46,143.78
  4. Step 4: Simplify right side
    145,975.98x = 10,104,357,297.39
  5. Step 5: Solve for x
    x = 10,104,357,297.39/145,975.98
  6. Step 6: Final answer
    x = 69,219.31

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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.