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Finding the Fourth Proportional to 135,937.92, 187,595.56 and 79,338.32

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Solution

The fourth proportional to 135,937.92, 187,595.56 and 79,338.32 is: 109,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,937.92 : 187,595.56 = 79,338.32 : x
  2. Step 2: Convert to fraction form
    135,937.92/187,595.56 = 79,338.32/x
  3. Step 3: Cross multiply
    135,937.92x = 187,595.56 × 79,338.32
  4. Step 4: Simplify right side
    135,937.92x = 14,883,516,569.86
  5. Step 5: Solve for x
    x = 14,883,516,569.86/135,937.92
  6. Step 6: Final answer
    x = 109,487.60

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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.