Home / 108,278.32-162,466-68,825.20

Finding the Fourth Proportional to 108,278.32, 162,466 and 68,825.20

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Solution

The fourth proportional to 108,278.32, 162,466 and 68,825.20 is: 103,268.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,278.32 : 162,466 = 68,825.20 : x
  2. Step 2: Convert to fraction form
    108,278.32/162,466 = 68,825.20/x
  3. Step 3: Cross multiply
    108,278.32x = 162,466 × 68,825.20
  4. Step 4: Simplify right side
    108,278.32x = 11,181,754,943.20
  5. Step 5: Solve for x
    x = 11,181,754,943.20/108,278.32
  6. Step 6: Final answer
    x = 103,268.64

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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.