Home / 91,616.85-137,267.46-71,618.58

Finding the Fourth Proportional to 91,616.85, 137,267.46 and 71,618.58

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Solution

The fourth proportional to 91,616.85, 137,267.46 and 71,618.58 is: 107,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,616.85 : 137,267.46 = 71,618.58 : x
  2. Step 2: Convert to fraction form
    91,616.85/137,267.46 = 71,618.58/x
  3. Step 3: Cross multiply
    91,616.85x = 137,267.46 × 71,618.58
  4. Step 4: Simplify right side
    91,616.85x = 9,830,900,565.41
  5. Step 5: Solve for x
    x = 9,830,900,565.41/91,616.85
  6. Step 6: Final answer
    x = 107,304.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.