Home / 107,901.12-161,851.68-45,572.16

Finding the Fourth Proportional to 107,901.12, 161,851.68 and 45,572.16

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Solution

The fourth proportional to 107,901.12, 161,851.68 and 45,572.16 is: 68,358.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,901.12 : 161,851.68 = 45,572.16 : x
  2. Step 2: Convert to fraction form
    107,901.12/161,851.68 = 45,572.16/x
  3. Step 3: Cross multiply
    107,901.12x = 161,851.68 × 45,572.16
  4. Step 4: Simplify right side
    107,901.12x = 7,375,930,657.23
  5. Step 5: Solve for x
    x = 7,375,930,657.23/107,901.12
  6. Step 6: Final answer
    x = 68,358.24

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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.