Home / 138,478.11-207,717.01-43,715.60

Finding the Fourth Proportional to 138,478.11, 207,717.01 and 43,715.60

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Solution

The fourth proportional to 138,478.11, 207,717.01 and 43,715.60 is: 65,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,478.11 : 207,717.01 = 43,715.60 : x
  2. Step 2: Convert to fraction form
    138,478.11/207,717.01 = 43,715.60/x
  3. Step 3: Cross multiply
    138,478.11x = 207,717.01 × 43,715.60
  4. Step 4: Simplify right side
    138,478.11x = 9,080,473,353.42
  5. Step 5: Solve for x
    x = 9,080,473,353.42/138,478.11
  6. Step 6: Final answer
    x = 65,573.35

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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.