Home / 144,083.28-198,842.70-80,420.52

Finding the Fourth Proportional to 144,083.28, 198,842.70 and 80,420.52

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Solution

The fourth proportional to 144,083.28, 198,842.70 and 80,420.52 is: 110,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,083.28 : 198,842.70 = 80,420.52 : x
  2. Step 2: Convert to fraction form
    144,083.28/198,842.70 = 80,420.52/x
  3. Step 3: Cross multiply
    144,083.28x = 198,842.70 × 80,420.52
  4. Step 4: Simplify right side
    144,083.28x = 15,991,033,332.20
  5. Step 5: Solve for x
    x = 15,991,033,332.20/144,083.28
  6. Step 6: Final answer
    x = 110,984.66

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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.