Home / 131,788.24-181,868.12-71,359

Finding the Fourth Proportional to 131,788.24, 181,868.12 and 71,359

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Solution

The fourth proportional to 131,788.24, 181,868.12 and 71,359 is: 98,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.24 : 181,868.12 = 71,359 : x
  2. Step 2: Convert to fraction form
    131,788.24/181,868.12 = 71,359/x
  3. Step 3: Cross multiply
    131,788.24x = 181,868.12 × 71,359
  4. Step 4: Simplify right side
    131,788.24x = 12,977,927,175.08
  5. Step 5: Solve for x
    x = 12,977,927,175.08/131,788.24
  6. Step 6: Final answer
    x = 98,475.61

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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.