Home / 118,715.10-177,921.45-48,515.10

Finding the Fourth Proportional to 118,715.10, 177,921.45 and 48,515.10

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Solution

The fourth proportional to 118,715.10, 177,921.45 and 48,515.10 is: 72,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,715.10 : 177,921.45 = 48,515.10 : x
  2. Step 2: Convert to fraction form
    118,715.10/177,921.45 = 48,515.10/x
  3. Step 3: Cross multiply
    118,715.10x = 177,921.45 × 48,515.10
  4. Step 4: Simplify right side
    118,715.10x = 8,631,876,938.90
  5. Step 5: Solve for x
    x = 8,631,876,938.90/118,715.10
  6. Step 6: Final answer
    x = 72,710.86

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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.