Home / 128,891.16-193,290.61-44,628.71

Finding the Fourth Proportional to 128,891.16, 193,290.61 and 44,628.71

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Solution

The fourth proportional to 128,891.16, 193,290.61 and 44,628.71 is: 66,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,891.16 : 193,290.61 = 44,628.71 : x
  2. Step 2: Convert to fraction form
    128,891.16/193,290.61 = 44,628.71/x
  3. Step 3: Cross multiply
    128,891.16x = 193,290.61 × 44,628.71
  4. Step 4: Simplify right side
    128,891.16x = 8,626,309,984.61
  5. Step 5: Solve for x
    x = 8,626,309,984.61/128,891.16
  6. Step 6: Final answer
    x = 66,927.09

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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.