Home / 118,082.15-177,161.52-70,689.86

Finding the Fourth Proportional to 118,082.15, 177,161.52 and 70,689.86

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Solution

The fourth proportional to 118,082.15, 177,161.52 and 70,689.86 is: 106,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,082.15 : 177,161.52 = 70,689.86 : x
  2. Step 2: Convert to fraction form
    118,082.15/177,161.52 = 70,689.86/x
  3. Step 3: Cross multiply
    118,082.15x = 177,161.52 × 70,689.86
  4. Step 4: Simplify right side
    118,082.15x = 12,523,523,046.19
  5. Step 5: Solve for x
    x = 12,523,523,046.19/118,082.15
  6. Step 6: Final answer
    x = 106,057.72

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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.