Home / 144,047.46-198,761.72-80,385.10

Finding the Fourth Proportional to 144,047.46, 198,761.72 and 80,385.10

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Solution

The fourth proportional to 144,047.46, 198,761.72 and 80,385.10 is: 110,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,047.46 : 198,761.72 = 80,385.10 : x
  2. Step 2: Convert to fraction form
    144,047.46/198,761.72 = 80,385.10/x
  3. Step 3: Cross multiply
    144,047.46x = 198,761.72 × 80,385.10
  4. Step 4: Simplify right side
    144,047.46x = 15,977,480,336.45
  5. Step 5: Solve for x
    x = 15,977,480,336.45/144,047.46
  6. Step 6: Final answer
    x = 110,918.17

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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.