Home / 143,586.28-198,141.28-79,042.96

Finding the Fourth Proportional to 143,586.28, 198,141.28 and 79,042.96

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Solution

The fourth proportional to 143,586.28, 198,141.28 and 79,042.96 is: 109,075.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,586.28 : 198,141.28 = 79,042.96 : x
  2. Step 2: Convert to fraction form
    143,586.28/198,141.28 = 79,042.96/x
  3. Step 3: Cross multiply
    143,586.28x = 198,141.28 × 79,042.96
  4. Step 4: Simplify right side
    143,586.28x = 15,661,673,269.39
  5. Step 5: Solve for x
    x = 15,661,673,269.39/143,586.28
  6. Step 6: Final answer
    x = 109,075.00

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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.