Home / 119,379.34-179,143.13-69,481.72

Finding the Fourth Proportional to 119,379.34, 179,143.13 and 69,481.72

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Solution

The fourth proportional to 119,379.34, 179,143.13 and 69,481.72 is: 104,265.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,379.34 : 179,143.13 = 69,481.72 : x
  2. Step 2: Convert to fraction form
    119,379.34/179,143.13 = 69,481.72/x
  3. Step 3: Cross multiply
    119,379.34x = 179,143.13 × 69,481.72
  4. Step 4: Simplify right side
    119,379.34x = 12,447,172,451.18
  5. Step 5: Solve for x
    x = 12,447,172,451.18/119,379.34
  6. Step 6: Final answer
    x = 104,265.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.