Home / 91,732.40-137,598.60-84,515.30

Finding the Fourth Proportional to 91,732.40, 137,598.60 and 84,515.30

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Solution

The fourth proportional to 91,732.40, 137,598.60 and 84,515.30 is: 126,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.40 : 137,598.60 = 84,515.30 : x
  2. Step 2: Convert to fraction form
    91,732.40/137,598.60 = 84,515.30/x
  3. Step 3: Cross multiply
    91,732.40x = 137,598.60 × 84,515.30
  4. Step 4: Simplify right side
    91,732.40x = 11,629,186,958.58
  5. Step 5: Solve for x
    x = 11,629,186,958.58/91,732.40
  6. Step 6: Final answer
    x = 126,772.95

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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.