Home / 261,651.08-392,515.02-84,099.56

Finding the Fourth Proportional to 261,651.08, 392,515.02 and 84,099.56

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Solution

The fourth proportional to 261,651.08, 392,515.02 and 84,099.56 is: 126,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,651.08 : 392,515.02 = 84,099.56 : x
  2. Step 2: Convert to fraction form
    261,651.08/392,515.02 = 84,099.56/x
  3. Step 3: Cross multiply
    261,651.08x = 392,515.02 × 84,099.56
  4. Step 4: Simplify right side
    261,651.08x = 33,010,340,475.39
  5. Step 5: Solve for x
    x = 33,010,340,475.39/261,651.08
  6. Step 6: Final answer
    x = 126,161.68

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1.5x scale

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.