Home / 108,251.20-149,432.72-65,823.36

Finding the Fourth Proportional to 108,251.20, 149,432.72 and 65,823.36

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Solution

The fourth proportional to 108,251.20, 149,432.72 and 65,823.36 is: 90,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,251.20 : 149,432.72 = 65,823.36 : x
  2. Step 2: Convert to fraction form
    108,251.20/149,432.72 = 65,823.36/x
  3. Step 3: Cross multiply
    108,251.20x = 149,432.72 × 65,823.36
  4. Step 4: Simplify right side
    108,251.20x = 9,836,163,724.34
  5. Step 5: Solve for x
    x = 9,836,163,724.34/108,251.20
  6. Step 6: Final answer
    x = 90,864.25

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1.5x scale

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.