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Finding the Fourth Proportional to 159,879.80, 220,628.34 and 88,258.28

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Solution

The fourth proportional to 159,879.80, 220,628.34 and 88,258.28 is: 121,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,879.80 : 220,628.34 = 88,258.28 : x
  2. Step 2: Convert to fraction form
    159,879.80/220,628.34 = 88,258.28/x
  3. Step 3: Cross multiply
    159,879.80x = 220,628.34 × 88,258.28
  4. Step 4: Simplify right side
    159,879.80x = 19,472,277,366.36
  5. Step 5: Solve for x
    x = 19,472,277,366.36/159,879.80
  6. Step 6: Final answer
    x = 121,793.23

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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.