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Finding the Fourth Proportional to 153,887.80, 230,799.30 and 65,144.20

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Solution

The fourth proportional to 153,887.80, 230,799.30 and 65,144.20 is: 97,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,887.80 : 230,799.30 = 65,144.20 : x
  2. Step 2: Convert to fraction form
    153,887.80/230,799.30 = 65,144.20/x
  3. Step 3: Cross multiply
    153,887.80x = 230,799.30 × 65,144.20
  4. Step 4: Simplify right side
    153,887.80x = 15,035,235,759.06
  5. Step 5: Solve for x
    x = 15,035,235,759.06/153,887.80
  6. Step 6: Final answer
    x = 97,702.58

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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.