Home / 159,780.82-220,498.32-88,160.90

Finding the Fourth Proportional to 159,780.82, 220,498.32 and 88,160.90

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Solution

The fourth proportional to 159,780.82, 220,498.32 and 88,160.90 is: 121,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,780.82 : 220,498.32 = 88,160.90 : x
  2. Step 2: Convert to fraction form
    159,780.82/220,498.32 = 88,160.90/x
  3. Step 3: Cross multiply
    159,780.82x = 220,498.32 × 88,160.90
  4. Step 4: Simplify right side
    159,780.82x = 19,439,330,339.69
  5. Step 5: Solve for x
    x = 19,439,330,339.69/159,780.82
  6. Step 6: Final answer
    x = 121,662.48

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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.