Home / 158,229.63-218,357.19-86,614.20

Finding the Fourth Proportional to 158,229.63, 218,357.19 and 86,614.20

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Solution

The fourth proportional to 158,229.63, 218,357.19 and 86,614.20 is: 119,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,229.63 : 218,357.19 = 86,614.20 : x
  2. Step 2: Convert to fraction form
    158,229.63/218,357.19 = 86,614.20/x
  3. Step 3: Cross multiply
    158,229.63x = 218,357.19 × 86,614.20
  4. Step 4: Simplify right side
    158,229.63x = 18,912,833,326.10
  5. Step 5: Solve for x
    x = 18,912,833,326.10/158,229.63
  6. Step 6: Final answer
    x = 119,527.76

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1.5x scale

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.