Home / 159,122.27-219,590.29-87,502.78

Finding the Fourth Proportional to 159,122.27, 219,590.29 and 87,502.78

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Solution

The fourth proportional to 159,122.27, 219,590.29 and 87,502.78 is: 120,754.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,122.27 : 219,590.29 = 87,502.78 : x
  2. Step 2: Convert to fraction form
    159,122.27/219,590.29 = 87,502.78/x
  3. Step 3: Cross multiply
    159,122.27x = 219,590.29 × 87,502.78
  4. Step 4: Simplify right side
    159,122.27x = 19,214,761,219.87
  5. Step 5: Solve for x
    x = 19,214,761,219.87/159,122.27
  6. Step 6: Final answer
    x = 120,754.69

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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.