Home / 124,713.92-172,109.84-68,125.68

Finding the Fourth Proportional to 124,713.92, 172,109.84 and 68,125.68

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Solution

The fourth proportional to 124,713.92, 172,109.84 and 68,125.68 is: 94,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,713.92 : 172,109.84 = 68,125.68 : x
  2. Step 2: Convert to fraction form
    124,713.92/172,109.84 = 68,125.68/x
  3. Step 3: Cross multiply
    124,713.92x = 172,109.84 × 68,125.68
  4. Step 4: Simplify right side
    124,713.92x = 11,725,099,884.69
  5. Step 5: Solve for x
    x = 11,725,099,884.69/124,713.92
  6. Step 6: Final answer
    x = 94,015.97

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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.