Home / 82,256.80-123,434.35-75,564.58

Finding the Fourth Proportional to 82,256.80, 123,434.35 and 75,564.58

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Solution

The fourth proportional to 82,256.80, 123,434.35 and 75,564.58 is: 113,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,256.80 : 123,434.35 = 75,564.58 : x
  2. Step 2: Convert to fraction form
    82,256.80/123,434.35 = 75,564.58/x
  3. Step 3: Cross multiply
    82,256.80x = 123,434.35 × 75,564.58
  4. Step 4: Simplify right side
    82,256.80x = 9,327,264,198.15
  5. Step 5: Solve for x
    x = 9,327,264,198.15/82,256.80
  6. Step 6: Final answer
    x = 113,392.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.