Home / 127,884.10-176,433.78-74,139.52

Finding the Fourth Proportional to 127,884.10, 176,433.78 and 74,139.52

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Solution

The fourth proportional to 127,884.10, 176,433.78 and 74,139.52 is: 102,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,884.10 : 176,433.78 = 74,139.52 : x
  2. Step 2: Convert to fraction form
    127,884.10/176,433.78 = 74,139.52/x
  3. Step 3: Cross multiply
    127,884.10x = 176,433.78 × 74,139.52
  4. Step 4: Simplify right side
    127,884.10x = 13,080,715,760.99
  5. Step 5: Solve for x
    x = 13,080,715,760.99/127,884.10
  6. Step 6: Final answer
    x = 102,285.71

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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.