Home / 102,705.32-141,732.36-57,391.11

Finding the Fourth Proportional to 102,705.32, 141,732.36 and 57,391.11

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Solution

The fourth proportional to 102,705.32, 141,732.36 and 57,391.11 is: 79,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,705.32 : 141,732.36 = 57,391.11 : x
  2. Step 2: Convert to fraction form
    102,705.32/141,732.36 = 57,391.11/x
  3. Step 3: Cross multiply
    102,705.32x = 141,732.36 × 57,391.11
  4. Step 4: Simplify right side
    102,705.32x = 8,134,177,463.32
  5. Step 5: Solve for x
    x = 8,134,177,463.32/102,705.32
  6. Step 6: Final answer
    x = 79,199.19

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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.