Home / 159,140.12-219,614.16-87,524.72

Finding the Fourth Proportional to 159,140.12, 219,614.16 and 87,524.72

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Solution

The fourth proportional to 159,140.12, 219,614.16 and 87,524.72 is: 120,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,140.12 : 219,614.16 = 87,524.72 : x
  2. Step 2: Convert to fraction form
    159,140.12/219,614.16 = 87,524.72/x
  3. Step 3: Cross multiply
    159,140.12x = 219,614.16 × 87,524.72
  4. Step 4: Simplify right side
    159,140.12x = 19,221,667,862.04
  5. Step 5: Solve for x
    x = 19,221,667,862.04/159,140.12
  6. Step 6: Final answer
    x = 120,784.55

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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.