Home / 124,645.92-172,011.36-68,057.34

Finding the Fourth Proportional to 124,645.92, 172,011.36 and 68,057.34

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Solution

The fourth proportional to 124,645.92, 172,011.36 and 68,057.34 is: 93,919.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.92 : 172,011.36 = 68,057.34 : x
  2. Step 2: Convert to fraction form
    124,645.92/172,011.36 = 68,057.34/x
  3. Step 3: Cross multiply
    124,645.92x = 172,011.36 × 68,057.34
  4. Step 4: Simplify right side
    124,645.92x = 11,706,635,611.38
  5. Step 5: Solve for x
    x = 11,706,635,611.38/124,645.92
  6. Step 6: Final answer
    x = 93,919.12

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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.