Home / 129,132.36-193,337.69-69,755.31

Finding the Fourth Proportional to 129,132.36, 193,337.69 and 69,755.31

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Solution

The fourth proportional to 129,132.36, 193,337.69 and 69,755.31 is: 104,438.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,132.36 : 193,337.69 = 69,755.31 : x
  2. Step 2: Convert to fraction form
    129,132.36/193,337.69 = 69,755.31/x
  3. Step 3: Cross multiply
    129,132.36x = 193,337.69 × 69,755.31
  4. Step 4: Simplify right side
    129,132.36x = 13,486,330,151.86
  5. Step 5: Solve for x
    x = 13,486,330,151.86/129,132.36
  6. Step 6: Final answer
    x = 104,438.04

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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.