Home / 145,828.80-218,743.20-122,500.80

Finding the Fourth Proportional to 145,828.80, 218,743.20 and 122,500.80

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Solution

The fourth proportional to 145,828.80, 218,743.20 and 122,500.80 is: 183,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,828.80 : 218,743.20 = 122,500.80 : x
  2. Step 2: Convert to fraction form
    145,828.80/218,743.20 = 122,500.80/x
  3. Step 3: Cross multiply
    145,828.80x = 218,743.20 × 122,500.80
  4. Step 4: Simplify right side
    145,828.80x = 26,796,216,994.56
  5. Step 5: Solve for x
    x = 26,796,216,994.56/145,828.80
  6. Step 6: Final answer
    x = 183,751.20

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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.