Home / 68,087.16-102,130.75-18,167.44

Finding the Fourth Proportional to 68,087.16, 102,130.75 and 18,167.44

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Solution

The fourth proportional to 68,087.16, 102,130.75 and 18,167.44 is: 27,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.16 : 102,130.75 = 18,167.44 : x
  2. Step 2: Convert to fraction form
    68,087.16/102,130.75 = 18,167.44/x
  3. Step 3: Cross multiply
    68,087.16x = 102,130.75 × 18,167.44
  4. Step 4: Simplify right side
    68,087.16x = 1,855,454,129.47
  5. Step 5: Solve for x
    x = 1,855,454,129.47/68,087.16
  6. Step 6: Final answer
    x = 27,251.16

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1.5x scale

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.