Home / 134,321.42-185,369.79-77,721.82

Finding the Fourth Proportional to 134,321.42, 185,369.79 and 77,721.82

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Solution

The fourth proportional to 134,321.42, 185,369.79 and 77,721.82 is: 107,259.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,321.42 : 185,369.79 = 77,721.82 : x
  2. Step 2: Convert to fraction form
    134,321.42/185,369.79 = 77,721.82/x
  3. Step 3: Cross multiply
    134,321.42x = 185,369.79 × 77,721.82
  4. Step 4: Simplify right side
    134,321.42x = 14,407,277,451.82
  5. Step 5: Solve for x
    x = 14,407,277,451.82/134,321.42
  6. Step 6: Final answer
    x = 107,259.72

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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.