Home / 126,552.72-189,764.37-42,282.48

Finding the Fourth Proportional to 126,552.72, 189,764.37 and 42,282.48

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Solution

The fourth proportional to 126,552.72, 189,764.37 and 42,282.48 is: 63,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,552.72 : 189,764.37 = 42,282.48 : x
  2. Step 2: Convert to fraction form
    126,552.72/189,764.37 = 42,282.48/x
  3. Step 3: Cross multiply
    126,552.72x = 189,764.37 × 42,282.48
  4. Step 4: Simplify right side
    126,552.72x = 8,023,708,179.24
  5. Step 5: Solve for x
    x = 8,023,708,179.24/126,552.72
  6. Step 6: Final answer
    x = 63,402.10

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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.