Home / 118,432.32-177,715.68-43,542.72

Finding the Fourth Proportional to 118,432.32, 177,715.68 and 43,542.72

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Solution

The fourth proportional to 118,432.32, 177,715.68 and 43,542.72 is: 65,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,432.32 : 177,715.68 = 43,542.72 : x
  2. Step 2: Convert to fraction form
    118,432.32/177,715.68 = 43,542.72/x
  3. Step 3: Cross multiply
    118,432.32x = 177,715.68 × 43,542.72
  4. Step 4: Simplify right side
    118,432.32x = 7,738,224,093.85
  5. Step 5: Solve for x
    x = 7,738,224,093.85/118,432.32
  6. Step 6: Final answer
    x = 65,338.79

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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.