Home / 68,139.10-102,172.20-23,767.30

Finding the Fourth Proportional to 68,139.10, 102,172.20 and 23,767.30

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Solution

The fourth proportional to 68,139.10, 102,172.20 and 23,767.30 is: 35,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,139.10 : 102,172.20 = 23,767.30 : x
  2. Step 2: Convert to fraction form
    68,139.10/102,172.20 = 23,767.30/x
  3. Step 3: Cross multiply
    68,139.10x = 102,172.20 × 23,767.30
  4. Step 4: Simplify right side
    68,139.10x = 2,428,357,329.06
  5. Step 5: Solve for x
    x = 2,428,357,329.06/68,139.10
  6. Step 6: Final answer
    x = 35,638.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.