Home / 104,560.31-156,752.28-45,351.38

Finding the Fourth Proportional to 104,560.31, 156,752.28 and 45,351.38

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Solution

The fourth proportional to 104,560.31, 156,752.28 and 45,351.38 is: 67,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,560.31 : 156,752.28 = 45,351.38 : x
  2. Step 2: Convert to fraction form
    104,560.31/156,752.28 = 45,351.38/x
  3. Step 3: Cross multiply
    104,560.31x = 156,752.28 × 45,351.38
  4. Step 4: Simplify right side
    104,560.31x = 7,108,932,216.15
  5. Step 5: Solve for x
    x = 7,108,932,216.15/104,560.31
  6. Step 6: Final answer
    x = 67,988.82

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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.