Home / 148,679.41-205,177.78-80,696.36

Finding the Fourth Proportional to 148,679.41, 205,177.78 and 80,696.36

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Solution

The fourth proportional to 148,679.41, 205,177.78 and 80,696.36 is: 111,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,679.41 : 205,177.78 = 80,696.36 : x
  2. Step 2: Convert to fraction form
    148,679.41/205,177.78 = 80,696.36/x
  3. Step 3: Cross multiply
    148,679.41x = 205,177.78 × 80,696.36
  4. Step 4: Simplify right side
    148,679.41x = 16,557,099,595.40
  5. Step 5: Solve for x
    x = 16,557,099,595.40/148,679.41
  6. Step 6: Final answer
    x = 111,361.08

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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.