Home / 131,911.31-182,037.76-71,481.43

Finding the Fourth Proportional to 131,911.31, 182,037.76 and 71,481.43

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Solution

The fourth proportional to 131,911.31, 182,037.76 and 71,481.43 is: 98,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,911.31 : 182,037.76 = 71,481.43 : x
  2. Step 2: Convert to fraction form
    131,911.31/182,037.76 = 71,481.43/x
  3. Step 3: Cross multiply
    131,911.31x = 182,037.76 × 71,481.43
  4. Step 4: Simplify right side
    131,911.31x = 13,012,318,488.61
  5. Step 5: Solve for x
    x = 13,012,318,488.61/131,911.31
  6. Step 6: Final answer
    x = 98,644.45

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1.5x scale

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.