Home / 124,708.76-172,099-68,120.12

Finding the Fourth Proportional to 124,708.76, 172,099 and 68,120.12

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Solution

The fourth proportional to 124,708.76, 172,099 and 68,120.12 is: 94,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,708.76 : 172,099 = 68,120.12 : x
  2. Step 2: Convert to fraction form
    124,708.76/172,099 = 68,120.12/x
  3. Step 3: Cross multiply
    124,708.76x = 172,099 × 68,120.12
  4. Step 4: Simplify right side
    124,708.76x = 11,723,404,531.88
  5. Step 5: Solve for x
    x = 11,723,404,531.88/124,708.76
  6. Step 6: Final answer
    x = 94,006.26

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1.5x scale

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.