Home / 189,164.11-261,153.40-125,588.83

Finding the Fourth Proportional to 189,164.11, 261,153.40 and 125,588.83

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Solution

The fourth proportional to 189,164.11, 261,153.40 and 125,588.83 is: 173,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,164.11 : 261,153.40 = 125,588.83 : x
  2. Step 2: Convert to fraction form
    189,164.11/261,153.40 = 125,588.83/x
  3. Step 3: Cross multiply
    189,164.11x = 261,153.40 × 125,588.83
  4. Step 4: Simplify right side
    189,164.11x = 32,797,948,989.67
  5. Step 5: Solve for x
    x = 32,797,948,989.67/189,164.11
  6. Step 6: Final answer
    x = 173,383.57

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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.