Home / 120,721.74-181,260.36-67,517.96

Finding the Fourth Proportional to 120,721.74, 181,260.36 and 67,517.96

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Solution

The fourth proportional to 120,721.74, 181,260.36 and 67,517.96 is: 101,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,721.74 : 181,260.36 = 67,517.96 : x
  2. Step 2: Convert to fraction form
    120,721.74/181,260.36 = 67,517.96/x
  3. Step 3: Cross multiply
    120,721.74x = 181,260.36 × 67,517.96
  4. Step 4: Simplify right side
    120,721.74x = 12,238,328,829.76
  5. Step 5: Solve for x
    x = 12,238,328,829.76/120,721.74
  6. Step 6: Final answer
    x = 101,376.35

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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.