Home / 107,974.32-148,951.08-72,175.56

Finding the Fourth Proportional to 107,974.32, 148,951.08 and 72,175.56

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Solution

The fourth proportional to 107,974.32, 148,951.08 and 72,175.56 is: 99,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,974.32 : 148,951.08 = 72,175.56 : x
  2. Step 2: Convert to fraction form
    107,974.32/148,951.08 = 72,175.56/x
  3. Step 3: Cross multiply
    107,974.32x = 148,951.08 × 72,175.56
  4. Step 4: Simplify right side
    107,974.32x = 10,750,627,611.60
  5. Step 5: Solve for x
    x = 10,750,627,611.60/107,974.32
  6. Step 6: Final answer
    x = 99,566.52

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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.