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Finding the Fourth Proportional to 95,259.60, 131,071.92 and 78,201.12

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Solution

The fourth proportional to 95,259.60, 131,071.92 and 78,201.12 is: 107,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,259.60 : 131,071.92 = 78,201.12 : x
  2. Step 2: Convert to fraction form
    95,259.60/131,071.92 = 78,201.12/x
  3. Step 3: Cross multiply
    95,259.60x = 131,071.92 × 78,201.12
  4. Step 4: Simplify right side
    95,259.60x = 10,249,970,944.55
  5. Step 5: Solve for x
    x = 10,249,970,944.55/95,259.60
  6. Step 6: Final answer
    x = 107,600.40

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1.5x scale

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.