Home / 112,587.75-155,376-62,286.75

Finding the Fourth Proportional to 112,587.75, 155,376 and 62,286.75

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Solution

The fourth proportional to 112,587.75, 155,376 and 62,286.75 is: 85,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,587.75 : 155,376 = 62,286.75 : x
  2. Step 2: Convert to fraction form
    112,587.75/155,376 = 62,286.75/x
  3. Step 3: Cross multiply
    112,587.75x = 155,376 × 62,286.75
  4. Step 4: Simplify right side
    112,587.75x = 9,677,866,068
  5. Step 5: Solve for x
    x = 9,677,866,068/112,587.75
  6. Step 6: Final answer
    x = 85,958.43

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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.