Home / 159,514.20-239,465.70-80,587.80

Finding the Fourth Proportional to 159,514.20, 239,465.70 and 80,587.80

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Solution

The fourth proportional to 159,514.20, 239,465.70 and 80,587.80 is: 120,979.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,514.20 : 239,465.70 = 80,587.80 : x
  2. Step 2: Convert to fraction form
    159,514.20/239,465.70 = 80,587.80/x
  3. Step 3: Cross multiply
    159,514.20x = 239,465.70 × 80,587.80
  4. Step 4: Simplify right side
    159,514.20x = 19,298,013,938.46
  5. Step 5: Solve for x
    x = 19,298,013,938.46/159,514.20
  6. Step 6: Final answer
    x = 120,979.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.