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Finding the Fourth Proportional to 113,259.52, 169,866.60 and 107,639.20

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Solution

The fourth proportional to 113,259.52, 169,866.60 and 107,639.20 is: 161,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,259.52 : 169,866.60 = 107,639.20 : x
  2. Step 2: Convert to fraction form
    113,259.52/169,866.60 = 107,639.20/x
  3. Step 3: Cross multiply
    113,259.52x = 169,866.60 × 107,639.20
  4. Step 4: Simplify right side
    113,259.52x = 18,284,304,930.72
  5. Step 5: Solve for x
    x = 18,284,304,930.72/113,259.52
  6. Step 6: Final answer
    x = 161,437.25

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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.