Home / 131,695.20-181,738.10-71,264.52

Finding the Fourth Proportional to 131,695.20, 181,738.10 and 71,264.52

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Solution

The fourth proportional to 131,695.20, 181,738.10 and 71,264.52 is: 98,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,695.20 : 181,738.10 = 71,264.52 : x
  2. Step 2: Convert to fraction form
    131,695.20/181,738.10 = 71,264.52/x
  3. Step 3: Cross multiply
    131,695.20x = 181,738.10 × 71,264.52
  4. Step 4: Simplify right side
    131,695.20x = 12,951,478,462.21
  5. Step 5: Solve for x
    x = 12,951,478,462.21/131,695.20
  6. Step 6: Final answer
    x = 98,344.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.