Home / 126,221.54-189,276.62-47,280.38

Finding the Fourth Proportional to 126,221.54, 189,276.62 and 47,280.38

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Solution

The fourth proportional to 126,221.54, 189,276.62 and 47,280.38 is: 70,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,221.54 : 189,276.62 = 47,280.38 : x
  2. Step 2: Convert to fraction form
    126,221.54/189,276.62 = 47,280.38/x
  3. Step 3: Cross multiply
    126,221.54x = 189,276.62 × 47,280.38
  4. Step 4: Simplify right side
    126,221.54x = 8,949,069,335.93
  5. Step 5: Solve for x
    x = 8,949,069,335.93/126,221.54
  6. Step 6: Final answer
    x = 70,899.70

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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.