Home / 91,724.64-137,353.68-84,026.40

Finding the Fourth Proportional to 91,724.64, 137,353.68 and 84,026.40

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Solution

The fourth proportional to 91,724.64, 137,353.68 and 84,026.40 is: 125,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,724.64 : 137,353.68 = 84,026.40 : x
  2. Step 2: Convert to fraction form
    91,724.64/137,353.68 = 84,026.40/x
  3. Step 3: Cross multiply
    91,724.64x = 137,353.68 × 84,026.40
  4. Step 4: Simplify right side
    91,724.64x = 11,541,335,257.15
  5. Step 5: Solve for x
    x = 11,541,335,257.15/91,724.64
  6. Step 6: Final answer
    x = 125,825.90

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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.