Home / 118,278.72-177,379.68-39,371.76

Finding the Fourth Proportional to 118,278.72, 177,379.68 and 39,371.76

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Solution

The fourth proportional to 118,278.72, 177,379.68 and 39,371.76 is: 59,044.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,278.72 : 177,379.68 = 39,371.76 : x
  2. Step 2: Convert to fraction form
    118,278.72/177,379.68 = 39,371.76/x
  3. Step 3: Cross multiply
    118,278.72x = 177,379.68 × 39,371.76
  4. Step 4: Simplify right side
    118,278.72x = 6,983,750,189.84
  5. Step 5: Solve for x
    x = 6,983,750,189.84/118,278.72
  6. Step 6: Final answer
    x = 59,044.86

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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.