Home / 158,245.22-218,380.95-86,624.00

Finding the Fourth Proportional to 158,245.22, 218,380.95 and 86,624.00

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Solution

The fourth proportional to 158,245.22, 218,380.95 and 86,624.00 is: 119,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,245.22 : 218,380.95 = 86,624.00 : x
  2. Step 2: Convert to fraction form
    158,245.22/218,380.95 = 86,624.00/x
  3. Step 3: Cross multiply
    158,245.22x = 218,380.95 × 86,624.00
  4. Step 4: Simplify right side
    158,245.22x = 18,917,030,320.90
  5. Step 5: Solve for x
    x = 18,917,030,320.90/158,245.22
  6. Step 6: Final answer
    x = 119,542.51

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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.