Home / 134,540.25-185,665.59-77,984.43

Finding the Fourth Proportional to 134,540.25, 185,665.59 and 77,984.43

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Solution

The fourth proportional to 134,540.25, 185,665.59 and 77,984.43 is: 107,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,540.25 : 185,665.59 = 77,984.43 : x
  2. Step 2: Convert to fraction form
    134,540.25/185,665.59 = 77,984.43/x
  3. Step 3: Cross multiply
    134,540.25x = 185,665.59 × 77,984.43
  4. Step 4: Simplify right side
    134,540.25x = 14,479,025,206.76
  5. Step 5: Solve for x
    x = 14,479,025,206.76/134,540.25
  6. Step 6: Final answer
    x = 107,618.54

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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.