Home / 100,923.87-151,272.66-40,938.41

Finding the Fourth Proportional to 100,923.87, 151,272.66 and 40,938.41

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Solution

The fourth proportional to 100,923.87, 151,272.66 and 40,938.41 is: 61,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,923.87 : 151,272.66 = 40,938.41 : x
  2. Step 2: Convert to fraction form
    100,923.87/151,272.66 = 40,938.41/x
  3. Step 3: Cross multiply
    100,923.87x = 151,272.66 × 40,938.41
  4. Step 4: Simplify right side
    100,923.87x = 6,192,862,708.57
  5. Step 5: Solve for x
    x = 6,192,862,708.57/100,923.87
  6. Step 6: Final answer
    x = 61,361.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.