Home / 158,189.04-218,301.60-86,568.96

Finding the Fourth Proportional to 158,189.04, 218,301.60 and 86,568.96

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Solution

The fourth proportional to 158,189.04, 218,301.60 and 86,568.96 is: 119,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,189.04 : 218,301.60 = 86,568.96 : x
  2. Step 2: Convert to fraction form
    158,189.04/218,301.60 = 86,568.96/x
  3. Step 3: Cross multiply
    158,189.04x = 218,301.60 × 86,568.96
  4. Step 4: Simplify right side
    158,189.04x = 18,898,142,478.34
  5. Step 5: Solve for x
    x = 18,898,142,478.34/158,189.04
  6. Step 6: Final answer
    x = 119,465.56

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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.