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Finding the Fourth Proportional to 100,559.43, 150,703.07 and 38,195.91

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Solution

The fourth proportional to 100,559.43, 150,703.07 and 38,195.91 is: 57,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,559.43 : 150,703.07 = 38,195.91 : x
  2. Step 2: Convert to fraction form
    100,559.43/150,703.07 = 38,195.91/x
  3. Step 3: Cross multiply
    100,559.43x = 150,703.07 × 38,195.91
  4. Step 4: Simplify right side
    100,559.43x = 5,756,240,707.46
  5. Step 5: Solve for x
    x = 5,756,240,707.46/100,559.43
  6. Step 6: Final answer
    x = 57,242.18

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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.