Home / 108,691.20-163,038.72-38,534.40

Finding the Fourth Proportional to 108,691.20, 163,038.72 and 38,534.40

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Solution

The fourth proportional to 108,691.20, 163,038.72 and 38,534.40 is: 57,802.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,691.20 : 163,038.72 = 38,534.40 : x
  2. Step 2: Convert to fraction form
    108,691.20/163,038.72 = 38,534.40/x
  3. Step 3: Cross multiply
    108,691.20x = 163,038.72 × 38,534.40
  4. Step 4: Simplify right side
    108,691.20x = 6,282,599,251.97
  5. Step 5: Solve for x
    x = 6,282,599,251.97/108,691.20
  6. Step 6: Final answer
    x = 57,802.28

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1.5x scale

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.