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Finding the Fourth Proportional to 113,165.64, 169,745.40 and 38,285.28

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Solution

The fourth proportional to 113,165.64, 169,745.40 and 38,285.28 is: 57,426.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,165.64 : 169,745.40 = 38,285.28 : x
  2. Step 2: Convert to fraction form
    113,165.64/169,745.40 = 38,285.28/x
  3. Step 3: Cross multiply
    113,165.64x = 169,745.40 × 38,285.28
  4. Step 4: Simplify right side
    113,165.64x = 6,498,750,167.71
  5. Step 5: Solve for x
    x = 6,498,750,167.71/113,165.64
  6. Step 6: Final answer
    x = 57,426.88

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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.