Home / 112,698.57-155,517.17-61,711.92

Finding the Fourth Proportional to 112,698.57, 155,517.17 and 61,711.92

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Solution

The fourth proportional to 112,698.57, 155,517.17 and 61,711.92 is: 85,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698.57 : 155,517.17 = 61,711.92 : x
  2. Step 2: Convert to fraction form
    112,698.57/155,517.17 = 61,711.92/x
  3. Step 3: Cross multiply
    112,698.57x = 155,517.17 × 61,711.92
  4. Step 4: Simplify right side
    112,698.57x = 9,597,262,845.11
  5. Step 5: Solve for x
    x = 9,597,262,845.11/112,698.57
  6. Step 6: Final answer
    x = 85,158.69

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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.