Home / 129,280.68-193,921.02-40,541.11

Finding the Fourth Proportional to 129,280.68, 193,921.02 and 40,541.11

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Solution

The fourth proportional to 129,280.68, 193,921.02 and 40,541.11 is: 60,811.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,280.68 : 193,921.02 = 40,541.11 : x
  2. Step 2: Convert to fraction form
    129,280.68/193,921.02 = 40,541.11/x
  3. Step 3: Cross multiply
    129,280.68x = 193,921.02 × 40,541.11
  4. Step 4: Simplify right side
    129,280.68x = 7,861,772,918.33
  5. Step 5: Solve for x
    x = 7,861,772,918.33/129,280.68
  6. Step 6: Final answer
    x = 60,811.66

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Similar ratio
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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.