Home / 100,439.18-150,684.12-46,377.80

Finding the Fourth Proportional to 100,439.18, 150,684.12 and 46,377.80

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Solution

The fourth proportional to 100,439.18, 150,684.12 and 46,377.80 is: 69,578.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,439.18 : 150,684.12 = 46,377.80 : x
  2. Step 2: Convert to fraction form
    100,439.18/150,684.12 = 46,377.80/x
  3. Step 3: Cross multiply
    100,439.18x = 150,684.12 × 46,377.80
  4. Step 4: Simplify right side
    100,439.18x = 6,988,397,980.54
  5. Step 5: Solve for x
    x = 6,988,397,980.54/100,439.18
  6. Step 6: Final answer
    x = 69,578.41

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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.