Home / 143,506.80-198,040.28-79,848.63

Finding the Fourth Proportional to 143,506.80, 198,040.28 and 79,848.63

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Solution

The fourth proportional to 143,506.80, 198,040.28 and 79,848.63 is: 110,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.80 : 198,040.28 = 79,848.63 : x
  2. Step 2: Convert to fraction form
    143,506.80/198,040.28 = 79,848.63/x
  3. Step 3: Cross multiply
    143,506.80x = 198,040.28 × 79,848.63
  4. Step 4: Simplify right side
    143,506.80x = 15,813,244,643.57
  5. Step 5: Solve for x
    x = 15,813,244,643.57/143,506.80
  6. Step 6: Final answer
    x = 110,191.61

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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.