Home / 129,026.20-193,280.10-89,627.80

Finding the Fourth Proportional to 129,026.20, 193,280.10 and 89,627.80

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Solution

The fourth proportional to 129,026.20, 193,280.10 and 89,627.80 is: 134,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,026.20 : 193,280.10 = 89,627.80 : x
  2. Step 2: Convert to fraction form
    129,026.20/193,280.10 = 89,627.80/x
  3. Step 3: Cross multiply
    129,026.20x = 193,280.10 × 89,627.80
  4. Step 4: Simplify right side
    129,026.20x = 17,323,270,146.78
  5. Step 5: Solve for x
    x = 17,323,270,146.78/129,026.20
  6. Step 6: Final answer
    x = 134,261.65

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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.