Home / 84,139.33-115,876.04-82,302.25

Finding the Fourth Proportional to 84,139.33, 115,876.04 and 82,302.25

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Solution

The fourth proportional to 84,139.33, 115,876.04 and 82,302.25 is: 113,346.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,139.33 : 115,876.04 = 82,302.25 : x
  2. Step 2: Convert to fraction form
    84,139.33/115,876.04 = 82,302.25/x
  3. Step 3: Cross multiply
    84,139.33x = 115,876.04 × 82,302.25
  4. Step 4: Simplify right side
    84,139.33x = 9,536,858,813.09
  5. Step 5: Solve for x
    x = 9,536,858,813.09/84,139.33
  6. Step 6: Final answer
    x = 113,346.03

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1.5x scale

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.