Home / 102,343.31-141,233.41-57,021.83

Finding the Fourth Proportional to 102,343.31, 141,233.41 and 57,021.83

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Solution

The fourth proportional to 102,343.31, 141,233.41 and 57,021.83 is: 78,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,343.31 : 141,233.41 = 57,021.83 : x
  2. Step 2: Convert to fraction form
    102,343.31/141,233.41 = 57,021.83/x
  3. Step 3: Cross multiply
    102,343.31x = 141,233.41 × 57,021.83
  4. Step 4: Simplify right side
    102,343.31x = 8,053,387,705.87
  5. Step 5: Solve for x
    x = 8,053,387,705.87/102,343.31
  6. Step 6: Final answer
    x = 78,689.93

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1.5x scale

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.