Home / 134,519.56-185,658.78-77,963.68

Finding the Fourth Proportional to 134,519.56, 185,658.78 and 77,963.68

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Solution

The fourth proportional to 134,519.56, 185,658.78 and 77,963.68 is: 107,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,519.56 : 185,658.78 = 77,963.68 : x
  2. Step 2: Convert to fraction form
    134,519.56/185,658.78 = 77,963.68/x
  3. Step 3: Cross multiply
    134,519.56x = 185,658.78 × 77,963.68
  4. Step 4: Simplify right side
    134,519.56x = 14,474,641,713.11
  5. Step 5: Solve for x
    x = 14,474,641,713.11/134,519.56
  6. Step 6: Final answer
    x = 107,602.51

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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.