Home / 159,110.46-219,564.27-87,488.64

Finding the Fourth Proportional to 159,110.46, 219,564.27 and 87,488.64

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Solution

The fourth proportional to 159,110.46, 219,564.27 and 87,488.64 is: 120,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,110.46 : 219,564.27 = 87,488.64 : x
  2. Step 2: Convert to fraction form
    159,110.46/219,564.27 = 87,488.64/x
  3. Step 3: Cross multiply
    159,110.46x = 219,564.27 × 87,488.64
  4. Step 4: Simplify right side
    159,110.46x = 19,209,379,374.89
  5. Step 5: Solve for x
    x = 19,209,379,374.89/159,110.46
  6. Step 6: Final answer
    x = 120,729.83

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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.