Home / 107,573.12-161,332.26-76,277.15

Finding the Fourth Proportional to 107,573.12, 161,332.26 and 76,277.15

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Solution

The fourth proportional to 107,573.12, 161,332.26 and 76,277.15 is: 114,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,573.12 : 161,332.26 = 76,277.15 : x
  2. Step 2: Convert to fraction form
    107,573.12/161,332.26 = 76,277.15/x
  3. Step 3: Cross multiply
    107,573.12x = 161,332.26 × 76,277.15
  4. Step 4: Simplify right side
    107,573.12x = 12,305,964,995.86
  5. Step 5: Solve for x
    x = 12,305,964,995.86/107,573.12
  6. Step 6: Final answer
    x = 114,396.28

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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.