Home / 84,500.20-116,835.78-74,002.60

Finding the Fourth Proportional to 84,500.20, 116,835.78 and 74,002.60

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Solution

The fourth proportional to 84,500.20, 116,835.78 and 74,002.60 is: 102,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,500.20 : 116,835.78 = 74,002.60 : x
  2. Step 2: Convert to fraction form
    84,500.20/116,835.78 = 74,002.60/x
  3. Step 3: Cross multiply
    84,500.20x = 116,835.78 × 74,002.60
  4. Step 4: Simplify right side
    84,500.20x = 8,646,151,493.03
  5. Step 5: Solve for x
    x = 8,646,151,493.03/84,500.20
  6. Step 6: Final answer
    x = 102,321.08

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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.