Home / 189,340.60-261,302.70-108,794.20

Finding the Fourth Proportional to 189,340.60, 261,302.70 and 108,794.20

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Solution

The fourth proportional to 189,340.60, 261,302.70 and 108,794.20 is: 150,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,340.60 : 261,302.70 = 108,794.20 : x
  2. Step 2: Convert to fraction form
    189,340.60/261,302.70 = 108,794.20/x
  3. Step 3: Cross multiply
    189,340.60x = 261,302.70 × 108,794.20
  4. Step 4: Simplify right side
    189,340.60x = 28,428,218,204.34
  5. Step 5: Solve for x
    x = 28,428,218,204.34/189,340.60
  6. Step 6: Final answer
    x = 150,143.28

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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.