Home / 159,122.32-219,590.41-87,502.87

Finding the Fourth Proportional to 159,122.32, 219,590.41 and 87,502.87

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Solution

The fourth proportional to 159,122.32, 219,590.41 and 87,502.87 is: 120,754.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,122.32 : 219,590.41 = 87,502.87 : x
  2. Step 2: Convert to fraction form
    159,122.32/219,590.41 = 87,502.87/x
  3. Step 3: Cross multiply
    159,122.32x = 219,590.41 × 87,502.87
  4. Step 4: Simplify right side
    159,122.32x = 19,214,790,001.52
  5. Step 5: Solve for x
    x = 19,214,790,001.52/159,122.32
  6. Step 6: Final answer
    x = 120,754.84

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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.