Home / 143,722.18-198,323.72-80,058.60

Finding the Fourth Proportional to 143,722.18, 198,323.72 and 80,058.60

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Solution

The fourth proportional to 143,722.18, 198,323.72 and 80,058.60 is: 110,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,722.18 : 198,323.72 = 80,058.60 : x
  2. Step 2: Convert to fraction form
    143,722.18/198,323.72 = 80,058.60/x
  3. Step 3: Cross multiply
    143,722.18x = 198,323.72 × 80,058.60
  4. Step 4: Simplify right side
    143,722.18x = 15,877,519,369.99
  5. Step 5: Solve for x
    x = 15,877,519,369.99/143,722.18
  6. Step 6: Final answer
    x = 110,473.69

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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.