Home / 85,292.31-117,695.43-82,426.05

Finding the Fourth Proportional to 85,292.31, 117,695.43 and 82,426.05

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Solution

The fourth proportional to 85,292.31, 117,695.43 and 82,426.05 is: 113,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,292.31 : 117,695.43 = 82,426.05 : x
  2. Step 2: Convert to fraction form
    85,292.31/117,695.43 = 82,426.05/x
  3. Step 3: Cross multiply
    85,292.31x = 117,695.43 × 82,426.05
  4. Step 4: Simplify right side
    85,292.31x = 9,701,169,397.95
  5. Step 5: Solve for x
    x = 9,701,169,397.95/85,292.31
  6. Step 6: Final answer
    x = 113,740.26

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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.