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Finding the Fourth Proportional to 153,045.60, 229,568.40 and 74,167.80

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Solution

The fourth proportional to 153,045.60, 229,568.40 and 74,167.80 is: 111,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,045.60 : 229,568.40 = 74,167.80 : x
  2. Step 2: Convert to fraction form
    153,045.60/229,568.40 = 74,167.80/x
  3. Step 3: Cross multiply
    153,045.60x = 229,568.40 × 74,167.80
  4. Step 4: Simplify right side
    153,045.60x = 17,026,583,177.52
  5. Step 5: Solve for x
    x = 17,026,583,177.52/153,045.60
  6. Step 6: Final answer
    x = 111,251.70

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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.