Home / 121,988.28-182,997.18-43,086.36

Finding the Fourth Proportional to 121,988.28, 182,997.18 and 43,086.36

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Solution

The fourth proportional to 121,988.28, 182,997.18 and 43,086.36 is: 64,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,988.28 : 182,997.18 = 43,086.36 : x
  2. Step 2: Convert to fraction form
    121,988.28/182,997.18 = 43,086.36/x
  3. Step 3: Cross multiply
    121,988.28x = 182,997.18 × 43,086.36
  4. Step 4: Simplify right side
    121,988.28x = 7,884,682,376.46
  5. Step 5: Solve for x
    x = 7,884,682,376.46/121,988.28
  6. Step 6: Final answer
    x = 64,634.75

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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.