Home / 131,691.36-181,734.56-71,262

Finding the Fourth Proportional to 131,691.36, 181,734.56 and 71,262

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Solution

The fourth proportional to 131,691.36, 181,734.56 and 71,262 is: 98,341.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,691.36 : 181,734.56 = 71,262 : x
  2. Step 2: Convert to fraction form
    131,691.36/181,734.56 = 71,262/x
  3. Step 3: Cross multiply
    131,691.36x = 181,734.56 × 71,262
  4. Step 4: Simplify right side
    131,691.36x = 12,950,768,214.72
  5. Step 5: Solve for x
    x = 12,950,768,214.72/131,691.36
  6. Step 6: Final answer
    x = 98,341.82

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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.