Home / 159,624.12-220,272.44-91,636.61

Finding the Fourth Proportional to 159,624.12, 220,272.44 and 91,636.61

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Solution

The fourth proportional to 159,624.12, 220,272.44 and 91,636.61 is: 126,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,624.12 : 220,272.44 = 91,636.61 : x
  2. Step 2: Convert to fraction form
    159,624.12/220,272.44 = 91,636.61/x
  3. Step 3: Cross multiply
    159,624.12x = 220,272.44 × 91,636.61
  4. Step 4: Simplify right side
    159,624.12x = 20,185,018,118.48
  5. Step 5: Solve for x
    x = 20,185,018,118.48/159,624.12
  6. Step 6: Final answer
    x = 126,453.43

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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.