Home / 134,773.38-185,972.40-78,173.82

Finding the Fourth Proportional to 134,773.38, 185,972.40 and 78,173.82

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Solution

The fourth proportional to 134,773.38, 185,972.40 and 78,173.82 is: 107,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,773.38 : 185,972.40 = 78,173.82 : x
  2. Step 2: Convert to fraction form
    134,773.38/185,972.40 = 78,173.82/x
  3. Step 3: Cross multiply
    134,773.38x = 185,972.40 × 78,173.82
  4. Step 4: Simplify right side
    134,773.38x = 14,538,172,922.57
  5. Step 5: Solve for x
    x = 14,538,172,922.57/134,773.38
  6. Step 6: Final answer
    x = 107,871.25

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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.