Home / 102,712.16-141,737.60-57,381.14

Finding the Fourth Proportional to 102,712.16, 141,737.60 and 57,381.14

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Solution

The fourth proportional to 102,712.16, 141,737.60 and 57,381.14 is: 79,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,712.16 : 141,737.60 = 57,381.14 : x
  2. Step 2: Convert to fraction form
    102,712.16/141,737.60 = 57,381.14/x
  3. Step 3: Cross multiply
    102,712.16x = 141,737.60 × 57,381.14
  4. Step 4: Simplify right side
    102,712.16x = 8,133,065,068.86
  5. Step 5: Solve for x
    x = 8,133,065,068.86/102,712.16
  6. Step 6: Final answer
    x = 79,183.08

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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.