Home / 99,766.46-137,701.28-57,349.60

Finding the Fourth Proportional to 99,766.46, 137,701.28 and 57,349.60

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Solution

The fourth proportional to 99,766.46, 137,701.28 and 57,349.60 is: 79,155.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,766.46 : 137,701.28 = 57,349.60 : x
  2. Step 2: Convert to fraction form
    99,766.46/137,701.28 = 57,349.60/x
  3. Step 3: Cross multiply
    99,766.46x = 137,701.28 × 57,349.60
  4. Step 4: Simplify right side
    99,766.46x = 7,897,113,327.49
  5. Step 5: Solve for x
    x = 7,897,113,327.49/99,766.46
  6. Step 6: Final answer
    x = 79,155.99

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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.