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Finding the Fourth Proportional to 158,589.96, 218,833.97 and 90,611.33

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Solution

The fourth proportional to 158,589.96, 218,833.97 and 90,611.33 is: 125,032.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,589.96 : 218,833.97 = 90,611.33 : x
  2. Step 2: Convert to fraction form
    158,589.96/218,833.97 = 90,611.33/x
  3. Step 3: Cross multiply
    158,589.96x = 218,833.97 × 90,611.33
  4. Step 4: Simplify right side
    158,589.96x = 19,828,838,262.02
  5. Step 5: Solve for x
    x = 19,828,838,262.02/158,589.96
  6. Step 6: Final answer
    x = 125,032.12

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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.