Home / 100,625.22-138,861.54-58,182.84

Finding the Fourth Proportional to 100,625.22, 138,861.54 and 58,182.84

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Solution

The fourth proportional to 100,625.22, 138,861.54 and 58,182.84 is: 80,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,625.22 : 138,861.54 = 58,182.84 : x
  2. Step 2: Convert to fraction form
    100,625.22/138,861.54 = 58,182.84/x
  3. Step 3: Cross multiply
    100,625.22x = 138,861.54 × 58,182.84
  4. Step 4: Simplify right side
    100,625.22x = 8,079,358,763.97
  5. Step 5: Solve for x
    x = 8,079,358,763.97/100,625.22
  6. Step 6: Final answer
    x = 80,291.59

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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.