Home / 189,748.12-261,845.10-109,201.51

Finding the Fourth Proportional to 189,748.12, 261,845.10 and 109,201.51

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Solution

The fourth proportional to 189,748.12, 261,845.10 and 109,201.51 is: 150,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,748.12 : 261,845.10 = 109,201.51 : x
  2. Step 2: Convert to fraction form
    189,748.12/261,845.10 = 109,201.51/x
  3. Step 3: Cross multiply
    189,748.12x = 261,845.10 × 109,201.51
  4. Step 4: Simplify right side
    189,748.12x = 28,593,880,306.10
  5. Step 5: Solve for x
    x = 28,593,880,306.10/189,748.12
  6. Step 6: Final answer
    x = 150,693.88

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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.