Home / 124,715.92-172,112.60-68,127.68

Finding the Fourth Proportional to 124,715.92, 172,112.60 and 68,127.68

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Solution

The fourth proportional to 124,715.92, 172,112.60 and 68,127.68 is: 94,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.92 : 172,112.60 = 68,127.68 : x
  2. Step 2: Convert to fraction form
    124,715.92/172,112.60 = 68,127.68/x
  3. Step 3: Cross multiply
    124,715.92x = 172,112.60 × 68,127.68
  4. Step 4: Simplify right side
    124,715.92x = 11,725,632,136.77
  5. Step 5: Solve for x
    x = 11,725,632,136.77/124,715.92
  6. Step 6: Final answer
    x = 94,018.73

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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.