Home / 124,706.81-172,099.67-68,121.83

Finding the Fourth Proportional to 124,706.81, 172,099.67 and 68,121.83

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Solution

The fourth proportional to 124,706.81, 172,099.67 and 68,121.83 is: 94,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,706.81 : 172,099.67 = 68,121.83 : x
  2. Step 2: Convert to fraction form
    124,706.81/172,099.67 = 68,121.83/x
  3. Step 3: Cross multiply
    124,706.81x = 172,099.67 × 68,121.83
  4. Step 4: Simplify right side
    124,706.81x = 11,723,744,552.44
  5. Step 5: Solve for x
    x = 11,723,744,552.44/124,706.81
  6. Step 6: Final answer
    x = 94,010.46

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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.