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Finding the Fourth Proportional to 115,862.08, 159,893.04 and 65,560

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Solution

The fourth proportional to 115,862.08, 159,893.04 and 65,560 is: 90,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,862.08 : 159,893.04 = 65,560 : x
  2. Step 2: Convert to fraction form
    115,862.08/159,893.04 = 65,560/x
  3. Step 3: Cross multiply
    115,862.08x = 159,893.04 × 65,560
  4. Step 4: Simplify right side
    115,862.08x = 10,482,587,702.40
  5. Step 5: Solve for x
    x = 10,482,587,702.40/115,862.08
  6. Step 6: Final answer
    x = 90,474.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.