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Finding the Fourth Proportional to 165,113.60, 247,704.84 and 75,113.60

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Solution

The fourth proportional to 165,113.60, 247,704.84 and 75,113.60 is: 112,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,113.60 : 247,704.84 = 75,113.60 : x
  2. Step 2: Convert to fraction form
    165,113.60/247,704.84 = 75,113.60/x
  3. Step 3: Cross multiply
    165,113.60x = 247,704.84 × 75,113.60
  4. Step 4: Simplify right side
    165,113.60x = 18,606,002,269.82
  5. Step 5: Solve for x
    x = 18,606,002,269.82/165,113.60
  6. Step 6: Final answer
    x = 112,686.07

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1.5x scale

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.