Home / 159,134.51-219,601.24-87,514.53

Finding the Fourth Proportional to 159,134.51, 219,601.24 and 87,514.53

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Solution

The fourth proportional to 159,134.51, 219,601.24 and 87,514.53 is: 120,767.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,134.51 : 219,601.24 = 87,514.53 : x
  2. Step 2: Convert to fraction form
    159,134.51/219,601.24 = 87,514.53/x
  3. Step 3: Cross multiply
    159,134.51x = 219,601.24 × 87,514.53
  4. Step 4: Simplify right side
    159,134.51x = 19,218,299,306.02
  5. Step 5: Solve for x
    x = 19,218,299,306.02/159,134.51
  6. Step 6: Final answer
    x = 120,767.64

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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.