Home / 94,120.38-129,089.70-83,491.56

Finding the Fourth Proportional to 94,120.38, 129,089.70 and 83,491.56

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Solution

The fourth proportional to 94,120.38, 129,089.70 and 83,491.56 is: 114,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,120.38 : 129,089.70 = 83,491.56 : x
  2. Step 2: Convert to fraction form
    94,120.38/129,089.70 = 83,491.56/x
  3. Step 3: Cross multiply
    94,120.38x = 129,089.70 × 83,491.56
  4. Step 4: Simplify right side
    94,120.38x = 10,777,900,432.93
  5. Step 5: Solve for x
    x = 10,777,900,432.93/94,120.38
  6. Step 6: Final answer
    x = 114,511.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.