Home / 143,710.13-198,321.89-80,047.91

Finding the Fourth Proportional to 143,710.13, 198,321.89 and 80,047.91

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Solution

The fourth proportional to 143,710.13, 198,321.89 and 80,047.91 is: 110,467.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,710.13 : 198,321.89 = 80,047.91 : x
  2. Step 2: Convert to fraction form
    143,710.13/198,321.89 = 80,047.91/x
  3. Step 3: Cross multiply
    143,710.13x = 198,321.89 × 80,047.91
  4. Step 4: Simplify right side
    143,710.13x = 15,875,252,897.32
  5. Step 5: Solve for x
    x = 15,875,252,897.32/143,710.13
  6. Step 6: Final answer
    x = 110,467.18

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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.