Home / 84,209.45-125,697.61-74,245.19

Finding the Fourth Proportional to 84,209.45, 125,697.61 and 74,245.19

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Solution

The fourth proportional to 84,209.45, 125,697.61 and 74,245.19 is: 110,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,209.45 : 125,697.61 = 74,245.19 : x
  2. Step 2: Convert to fraction form
    84,209.45/125,697.61 = 74,245.19/x
  3. Step 3: Cross multiply
    84,209.45x = 125,697.61 × 74,245.19
  4. Step 4: Simplify right side
    84,209.45x = 9,332,442,937.00
  5. Step 5: Solve for x
    x = 9,332,442,937.00/84,209.45
  6. Step 6: Final answer
    x = 110,824.18

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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.