Home / 123,588,037.20-185,382,055.80-71,861,113.20

Finding the Fourth Proportional to 123,588,037.20, 185,382,055.80 and 71,861,113.20

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Solution

The fourth proportional to 123,588,037.20, 185,382,055.80 and 71,861,113.20 is: 107,791,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,588,037.20 : 185,382,055.80 = 71,861,113.20 : x
  2. Step 2: Convert to fraction form
    123,588,037.20/185,382,055.80 = 71,861,113.20/x
  3. Step 3: Cross multiply
    123,588,037.20x = 185,382,055.80 × 71,861,113.20
  4. Step 4: Simplify right side
    123,588,037.20x = 13,321,760,897,092,518
  5. Step 5: Solve for x
    x = 13,321,760,897,092,518/123,588,037.20
  6. Step 6: Final answer
    x = 107,791,669.80

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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.