Home / 158,539.68-218,712.96-126,753.12

Finding the Fourth Proportional to 158,539.68, 218,712.96 and 126,753.12

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Solution

The fourth proportional to 158,539.68, 218,712.96 and 126,753.12 is: 174,861.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,539.68 : 218,712.96 = 126,753.12 : x
  2. Step 2: Convert to fraction form
    158,539.68/218,712.96 = 126,753.12/x
  3. Step 3: Cross multiply
    158,539.68x = 218,712.96 × 126,753.12
  4. Step 4: Simplify right side
    158,539.68x = 27,722,550,064.44
  5. Step 5: Solve for x
    x = 27,722,550,064.44/158,539.68
  6. Step 6: Final answer
    x = 174,861.90

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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.