Home / 123,307.11-170,163.45-69,591.96

Finding the Fourth Proportional to 123,307.11, 170,163.45 and 69,591.96

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Solution

The fourth proportional to 123,307.11, 170,163.45 and 69,591.96 is: 96,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,307.11 : 170,163.45 = 69,591.96 : x
  2. Step 2: Convert to fraction form
    123,307.11/170,163.45 = 69,591.96/x
  3. Step 3: Cross multiply
    123,307.11x = 170,163.45 × 69,591.96
  4. Step 4: Simplify right side
    123,307.11x = 11,842,008,005.86
  5. Step 5: Solve for x
    x = 11,842,008,005.86/123,307.11
  6. Step 6: Final answer
    x = 96,036.70

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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.