Home / 144,839.78-199,875.87-79,427.66

Finding the Fourth Proportional to 144,839.78, 199,875.87 and 79,427.66

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Solution

The fourth proportional to 144,839.78, 199,875.87 and 79,427.66 is: 109,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,839.78 : 199,875.87 = 79,427.66 : x
  2. Step 2: Convert to fraction form
    144,839.78/199,875.87 = 79,427.66/x
  3. Step 3: Cross multiply
    144,839.78x = 199,875.87 × 79,427.66
  4. Step 4: Simplify right side
    144,839.78x = 15,875,672,644.56
  5. Step 5: Solve for x
    x = 15,875,672,644.56/144,839.78
  6. Step 6: Final answer
    x = 109,608.51

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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.