Home / 102,387,781.80-153,581,672.70-75,178,002.60

Finding the Fourth Proportional to 102,387,781.80, 153,581,672.70 and 75,178,002.60

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Solution

The fourth proportional to 102,387,781.80, 153,581,672.70 and 75,178,002.60 is: 112,767,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,387,781.80 : 153,581,672.70 = 75,178,002.60 : x
  2. Step 2: Convert to fraction form
    102,387,781.80/153,581,672.70 = 75,178,002.60/x
  3. Step 3: Cross multiply
    102,387,781.80x = 153,581,672.70 × 75,178,002.60
  4. Step 4: Simplify right side
    102,387,781.80x = 11,545,963,389,552,948
  5. Step 5: Solve for x
    x = 11,545,963,389,552,948/102,387,781.80
  6. Step 6: Final answer
    x = 112,767,003.90

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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.