Home / 84,129.68-115,862.73-82,292.60

Finding the Fourth Proportional to 84,129.68, 115,862.73 and 82,292.60

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Solution

The fourth proportional to 84,129.68, 115,862.73 and 82,292.60 is: 113,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,129.68 : 115,862.73 = 82,292.60 : x
  2. Step 2: Convert to fraction form
    84,129.68/115,862.73 = 82,292.60/x
  3. Step 3: Cross multiply
    84,129.68x = 115,862.73 × 82,292.60
  4. Step 4: Simplify right side
    84,129.68x = 9,534,645,294.80
  5. Step 5: Solve for x
    x = 9,534,645,294.80/84,129.68
  6. Step 6: Final answer
    x = 113,332.72

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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.