Home / 102,731,891.76-141,766,248.60-56,321,127.36

Finding the Fourth Proportional to 102,731,891.76, 141,766,248.60 and 56,321,127.36

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Solution

The fourth proportional to 102,731,891.76, 141,766,248.60 and 56,321,127.36 is: 77,721,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,731,891.76 : 141,766,248.60 = 56,321,127.36 : x
  2. Step 2: Convert to fraction form
    102,731,891.76/141,766,248.60 = 56,321,127.36/x
  3. Step 3: Cross multiply
    102,731,891.76x = 141,766,248.60 × 56,321,127.36
  4. Step 4: Simplify right side
    102,731,891.76x = 7,984,434,942,750,021
  5. Step 5: Solve for x
    x = 7,984,434,942,750,021/102,731,891.76
  6. Step 6: Final answer
    x = 77,721,093.28

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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.