Home / 102,962.66-142,171.13-82,754.78

Finding the Fourth Proportional to 102,962.66, 142,171.13 and 82,754.78

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Solution

The fourth proportional to 102,962.66, 142,171.13 and 82,754.78 is: 114,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,962.66 : 142,171.13 = 82,754.78 : x
  2. Step 2: Convert to fraction form
    102,962.66/142,171.13 = 82,754.78/x
  3. Step 3: Cross multiply
    102,962.66x = 142,171.13 × 82,754.78
  4. Step 4: Simplify right side
    102,962.66x = 11,765,340,081.53
  5. Step 5: Solve for x
    x = 11,765,340,081.53/102,962.66
  6. Step 6: Final answer
    x = 114,268.03

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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.