Home / 158,358.24-218,525.04-86,724

Finding the Fourth Proportional to 158,358.24, 218,525.04 and 86,724

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Solution

The fourth proportional to 158,358.24, 218,525.04 and 86,724 is: 119,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,358.24 : 218,525.04 = 86,724 : x
  2. Step 2: Convert to fraction form
    158,358.24/218,525.04 = 86,724/x
  3. Step 3: Cross multiply
    158,358.24x = 218,525.04 × 86,724
  4. Step 4: Simplify right side
    158,358.24x = 18,951,365,568.96
  5. Step 5: Solve for x
    x = 18,951,365,568.96/158,358.24
  6. Step 6: Final answer
    x = 119,674.01

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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.