Home / 124,747,001.65-172,142,123.02-72,532,332.91

Finding the Fourth Proportional to 124,747,001.65, 172,142,123.02 and 72,532,332.91

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Solution

The fourth proportional to 124,747,001.65, 172,142,123.02 and 72,532,332.91 is: 100,089,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,747,001.65 : 172,142,123.02 = 72,532,332.91 : x
  2. Step 2: Convert to fraction form
    124,747,001.65/172,142,123.02 = 72,532,332.91/x
  3. Step 3: Cross multiply
    124,747,001.65x = 172,142,123.02 × 72,532,332.91
  4. Step 4: Simplify right side
    124,747,001.65x = 12,485,869,774,720,814
  5. Step 5: Solve for x
    x = 12,485,869,774,720,814/124,747,001.65
  6. Step 6: Final answer
    x = 100,089,538.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.