Home / 118,575.20-176,997.16-103,628

Finding the Fourth Proportional to 118,575.20, 176,997.16 and 103,628

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Solution

The fourth proportional to 118,575.20, 176,997.16 and 103,628 is: 154,685.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,575.20 : 176,997.16 = 103,628 : x
  2. Step 2: Convert to fraction form
    118,575.20/176,997.16 = 103,628/x
  3. Step 3: Cross multiply
    118,575.20x = 176,997.16 × 103,628
  4. Step 4: Simplify right side
    118,575.20x = 18,341,861,696.48
  5. Step 5: Solve for x
    x = 18,341,861,696.48/118,575.20
  6. Step 6: Final answer
    x = 154,685.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.