Home / 158,304.22-218,464.78-86,691.04

Finding the Fourth Proportional to 158,304.22, 218,464.78 and 86,691.04

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Solution

The fourth proportional to 158,304.22, 218,464.78 and 86,691.04 is: 119,636.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,304.22 : 218,464.78 = 86,691.04 : x
  2. Step 2: Convert to fraction form
    158,304.22/218,464.78 = 86,691.04/x
  3. Step 3: Cross multiply
    158,304.22x = 218,464.78 × 86,691.04
  4. Step 4: Simplify right side
    158,304.22x = 18,938,938,981.57
  5. Step 5: Solve for x
    x = 18,938,938,981.57/158,304.22
  6. Step 6: Final answer
    x = 119,636.35

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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.