Home / 158,298.22-218,456.49-86,685.04

Finding the Fourth Proportional to 158,298.22, 218,456.49 and 86,685.04

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Solution

The fourth proportional to 158,298.22, 218,456.49 and 86,685.04 is: 119,628.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,298.22 : 218,456.49 = 86,685.04 : x
  2. Step 2: Convert to fraction form
    158,298.22/218,456.49 = 86,685.04/x
  3. Step 3: Cross multiply
    158,298.22x = 218,456.49 × 86,685.04
  4. Step 4: Simplify right side
    158,298.22x = 18,936,909,573.91
  5. Step 5: Solve for x
    x = 18,936,909,573.91/158,298.22
  6. Step 6: Final answer
    x = 119,628.06

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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.