Home / 138,882.12-208,280.16-50,124.39

Finding the Fourth Proportional to 138,882.12, 208,280.16 and 50,124.39

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Solution

The fourth proportional to 138,882.12, 208,280.16 and 50,124.39 is: 75,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,882.12 : 208,280.16 = 50,124.39 : x
  2. Step 2: Convert to fraction form
    138,882.12/208,280.16 = 50,124.39/x
  3. Step 3: Cross multiply
    138,882.12x = 208,280.16 × 50,124.39
  4. Step 4: Simplify right side
    138,882.12x = 10,439,915,969.10
  5. Step 5: Solve for x
    x = 10,439,915,969.10/138,882.12
  6. Step 6: Final answer
    x = 75,171.06

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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.