Home / 82,055.60-122,383.84-80,635.04

Finding the Fourth Proportional to 82,055.60, 122,383.84 and 80,635.04

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Solution

The fourth proportional to 82,055.60, 122,383.84 and 80,635.04 is: 120,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,055.60 : 122,383.84 = 80,635.04 : x
  2. Step 2: Convert to fraction form
    82,055.60/122,383.84 = 80,635.04/x
  3. Step 3: Cross multiply
    82,055.60x = 122,383.84 × 80,635.04
  4. Step 4: Simplify right side
    82,055.60x = 9,868,425,833.75
  5. Step 5: Solve for x
    x = 9,868,425,833.75/82,055.60
  6. Step 6: Final answer
    x = 120,265.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.