Home / 189,311.28-261,266.64-132,033.72

Finding the Fourth Proportional to 189,311.28, 261,266.64 and 132,033.72

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Solution

The fourth proportional to 189,311.28, 261,266.64 and 132,033.72 is: 182,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,311.28 : 261,266.64 = 132,033.72 : x
  2. Step 2: Convert to fraction form
    189,311.28/261,266.64 = 132,033.72/x
  3. Step 3: Cross multiply
    189,311.28x = 261,266.64 × 132,033.72
  4. Step 4: Simplify right side
    189,311.28x = 34,496,006,391.10
  5. Step 5: Solve for x
    x = 34,496,006,391.10/189,311.28
  6. Step 6: Final answer
    x = 182,218.44

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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.