Home / 121,721.90-182,651.61-65,560.82

Finding the Fourth Proportional to 121,721.90, 182,651.61 and 65,560.82

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Solution

The fourth proportional to 121,721.90, 182,651.61 and 65,560.82 is: 98,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,721.90 : 182,651.61 = 65,560.82 : x
  2. Step 2: Convert to fraction form
    121,721.90/182,651.61 = 65,560.82/x
  3. Step 3: Cross multiply
    121,721.90x = 182,651.61 × 65,560.82
  4. Step 4: Simplify right side
    121,721.90x = 11,974,789,325.92
  5. Step 5: Solve for x
    x = 11,974,789,325.92/121,721.90
  6. Step 6: Final answer
    x = 98,378.26

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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.