Home / 121,424.10-182,136.15-68,061.30

Finding the Fourth Proportional to 121,424.10, 182,136.15 and 68,061.30

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Solution

The fourth proportional to 121,424.10, 182,136.15 and 68,061.30 is: 102,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,424.10 : 182,136.15 = 68,061.30 : x
  2. Step 2: Convert to fraction form
    121,424.10/182,136.15 = 68,061.30/x
  3. Step 3: Cross multiply
    121,424.10x = 182,136.15 × 68,061.30
  4. Step 4: Simplify right side
    121,424.10x = 12,396,423,146.00
  5. Step 5: Solve for x
    x = 12,396,423,146.00/121,424.10
  6. Step 6: Final answer
    x = 102,091.95

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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.