Home / 129,099.60-193,552.20-54,158.40

Finding the Fourth Proportional to 129,099.60, 193,552.20 and 54,158.40

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Solution

The fourth proportional to 129,099.60, 193,552.20 and 54,158.40 is: 81,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,099.60 : 193,552.20 = 54,158.40 : x
  2. Step 2: Convert to fraction form
    129,099.60/193,552.20 = 54,158.40/x
  3. Step 3: Cross multiply
    129,099.60x = 193,552.20 × 54,158.40
  4. Step 4: Simplify right side
    129,099.60x = 10,482,477,468.48
  5. Step 5: Solve for x
    x = 10,482,477,468.48/129,099.60
  6. Step 6: Final answer
    x = 81,196.82

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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.