Home / 158,976.26-219,402.50-90,979.66

Finding the Fourth Proportional to 158,976.26, 219,402.50 and 90,979.66

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Solution

The fourth proportional to 158,976.26, 219,402.50 and 90,979.66 is: 125,560.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,976.26 : 219,402.50 = 90,979.66 : x
  2. Step 2: Convert to fraction form
    158,976.26/219,402.50 = 90,979.66/x
  3. Step 3: Cross multiply
    158,976.26x = 219,402.50 × 90,979.66
  4. Step 4: Simplify right side
    158,976.26x = 19,961,164,853.15
  5. Step 5: Solve for x
    x = 19,961,164,853.15/158,976.26
  6. Step 6: Final answer
    x = 125,560.66

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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.