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Finding the Fourth Proportional to 135,702.40, 203,553.60 and 65,718.40

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Solution

The fourth proportional to 135,702.40, 203,553.60 and 65,718.40 is: 98,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,702.40 : 203,553.60 = 65,718.40 : x
  2. Step 2: Convert to fraction form
    135,702.40/203,553.60 = 65,718.40/x
  3. Step 3: Cross multiply
    135,702.40x = 203,553.60 × 65,718.40
  4. Step 4: Simplify right side
    135,702.40x = 13,377,216,906.24
  5. Step 5: Solve for x
    x = 13,377,216,906.24/135,702.40
  6. Step 6: Final answer
    x = 98,577.60

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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.