Home / 107,753.06-148,622.75-91,508.21

Finding the Fourth Proportional to 107,753.06, 148,622.75 and 91,508.21

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Solution

The fourth proportional to 107,753.06, 148,622.75 and 91,508.21 is: 126,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,753.06 : 148,622.75 = 91,508.21 : x
  2. Step 2: Convert to fraction form
    107,753.06/148,622.75 = 91,508.21/x
  3. Step 3: Cross multiply
    107,753.06x = 148,622.75 × 91,508.21
  4. Step 4: Simplify right side
    107,753.06x = 13,600,201,517.61
  5. Step 5: Solve for x
    x = 13,600,201,517.61/107,753.06
  6. Step 6: Final answer
    x = 126,216.38

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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.