Home / 121,968.24-182,952.56-80,112.70

Finding the Fourth Proportional to 121,968.24, 182,952.56 and 80,112.70

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Solution

The fourth proportional to 121,968.24, 182,952.56 and 80,112.70 is: 120,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,968.24 : 182,952.56 = 80,112.70 : x
  2. Step 2: Convert to fraction form
    121,968.24/182,952.56 = 80,112.70/x
  3. Step 3: Cross multiply
    121,968.24x = 182,952.56 × 80,112.70
  4. Step 4: Simplify right side
    121,968.24x = 14,656,823,553.51
  5. Step 5: Solve for x
    x = 14,656,823,553.51/121,968.24
  6. Step 6: Final answer
    x = 120,169.18

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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.