Home / 112,838.20-155,709.53-61,841.92

Finding the Fourth Proportional to 112,838.20, 155,709.53 and 61,841.92

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Solution

The fourth proportional to 112,838.20, 155,709.53 and 61,841.92 is: 85,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,838.20 : 155,709.53 = 61,841.92 : x
  2. Step 2: Convert to fraction form
    112,838.20/155,709.53 = 61,841.92/x
  3. Step 3: Cross multiply
    112,838.20x = 155,709.53 × 61,841.92
  4. Step 4: Simplify right side
    112,838.20x = 9,629,375,209.74
  5. Step 5: Solve for x
    x = 9,629,375,209.74/112,838.20
  6. Step 6: Final answer
    x = 85,337.91

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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.