Home / 143,524.48-198,071.56-79,863.66

Finding the Fourth Proportional to 143,524.48, 198,071.56 and 79,863.66

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Solution

The fourth proportional to 143,524.48, 198,071.56 and 79,863.66 is: 110,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,524.48 : 198,071.56 = 79,863.66 : x
  2. Step 2: Convert to fraction form
    143,524.48/198,071.56 = 79,863.66/x
  3. Step 3: Cross multiply
    143,524.48x = 198,071.56 × 79,863.66
  4. Step 4: Simplify right side
    143,524.48x = 15,818,719,723.51
  5. Step 5: Solve for x
    x = 15,818,719,723.51/143,524.48
  6. Step 6: Final answer
    x = 110,216.18

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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.