Home / 158,281.20-218,430.66-86,660.04

Finding the Fourth Proportional to 158,281.20, 218,430.66 and 86,660.04

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Solution

The fourth proportional to 158,281.20, 218,430.66 and 86,660.04 is: 119,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,281.20 : 218,430.66 = 86,660.04 : x
  2. Step 2: Convert to fraction form
    158,281.20/218,430.66 = 86,660.04/x
  3. Step 3: Cross multiply
    158,281.20x = 218,430.66 × 86,660.04
  4. Step 4: Simplify right side
    158,281.20x = 18,929,209,732.83
  5. Step 5: Solve for x
    x = 18,929,209,732.83/158,281.20
  6. Step 6: Final answer
    x = 119,592.28

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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.