Home / 158,229.34-218,356.73-86,613.90

Finding the Fourth Proportional to 158,229.34, 218,356.73 and 86,613.90

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Solution

The fourth proportional to 158,229.34, 218,356.73 and 86,613.90 is: 119,527.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,229.34 : 218,356.73 = 86,613.90 : x
  2. Step 2: Convert to fraction form
    158,229.34/218,356.73 = 86,613.90/x
  3. Step 3: Cross multiply
    158,229.34x = 218,356.73 × 86,613.90
  4. Step 4: Simplify right side
    158,229.34x = 18,912,727,976.55
  5. Step 5: Solve for x
    x = 18,912,727,976.55/158,229.34
  6. Step 6: Final answer
    x = 119,527.31

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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.