Home / 118,314.20-177,125.70-105,872.60

Finding the Fourth Proportional to 118,314.20, 177,125.70 and 105,872.60

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Solution

The fourth proportional to 118,314.20, 177,125.70 and 105,872.60 is: 158,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,314.20 : 177,125.70 = 105,872.60 : x
  2. Step 2: Convert to fraction form
    118,314.20/177,125.70 = 105,872.60/x
  3. Step 3: Cross multiply
    118,314.20x = 177,125.70 × 105,872.60
  4. Step 4: Simplify right side
    118,314.20x = 18,752,758,385.82
  5. Step 5: Solve for x
    x = 18,752,758,385.82/118,314.20
  6. Step 6: Final answer
    x = 158,499.64

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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.