Home / 102,434.92-141,361.70-57,111.56

Finding the Fourth Proportional to 102,434.92, 141,361.70 and 57,111.56

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Solution

The fourth proportional to 102,434.92, 141,361.70 and 57,111.56 is: 78,814.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,434.92 : 141,361.70 = 57,111.56 : x
  2. Step 2: Convert to fraction form
    102,434.92/141,361.70 = 57,111.56/x
  3. Step 3: Cross multiply
    102,434.92x = 141,361.70 × 57,111.56
  4. Step 4: Simplify right side
    102,434.92x = 8,073,387,211.25
  5. Step 5: Solve for x
    x = 8,073,387,211.25/102,434.92
  6. Step 6: Final answer
    x = 78,814.79

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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.