Home / 139,366.02-192,404.90-91,757.75

Finding the Fourth Proportional to 139,366.02, 192,404.90 and 91,757.75

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Solution

The fourth proportional to 139,366.02, 192,404.90 and 91,757.75 is: 126,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,366.02 : 192,404.90 = 91,757.75 : x
  2. Step 2: Convert to fraction form
    139,366.02/192,404.90 = 91,757.75/x
  3. Step 3: Cross multiply
    139,366.02x = 192,404.90 × 91,757.75
  4. Step 4: Simplify right side
    139,366.02x = 17,654,640,254.19
  5. Step 5: Solve for x
    x = 17,654,640,254.19/139,366.02
  6. Step 6: Final answer
    x = 126,678.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.