Home / 124,910.01-172,371.45-71,212.32

Finding the Fourth Proportional to 124,910.01, 172,371.45 and 71,212.32

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Solution

The fourth proportional to 124,910.01, 172,371.45 and 71,212.32 is: 98,270.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,910.01 : 172,371.45 = 71,212.32 : x
  2. Step 2: Convert to fraction form
    124,910.01/172,371.45 = 71,212.32/x
  3. Step 3: Cross multiply
    124,910.01x = 172,371.45 × 71,212.32
  4. Step 4: Simplify right side
    124,910.01x = 12,274,970,856.26
  5. Step 5: Solve for x
    x = 12,274,970,856.26/124,910.01
  6. Step 6: Final answer
    x = 98,270.51

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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.