Home / 144,372.10-199,227.78-79,837.15

Finding the Fourth Proportional to 144,372.10, 199,227.78 and 79,837.15

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Solution

The fourth proportional to 144,372.10, 199,227.78 and 79,837.15 is: 110,172.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,372.10 : 199,227.78 = 79,837.15 : x
  2. Step 2: Convert to fraction form
    144,372.10/199,227.78 = 79,837.15/x
  3. Step 3: Cross multiply
    144,372.10x = 199,227.78 × 79,837.15
  4. Step 4: Simplify right side
    144,372.10x = 15,905,777,159.89
  5. Step 5: Solve for x
    x = 15,905,777,159.89/144,372.10
  6. Step 6: Final answer
    x = 110,172.10

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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.