Home / 100,557.18-150,699.69-38,193.66

Finding the Fourth Proportional to 100,557.18, 150,699.69 and 38,193.66

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Solution

The fourth proportional to 100,557.18, 150,699.69 and 38,193.66 is: 57,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,557.18 : 150,699.69 = 38,193.66 : x
  2. Step 2: Convert to fraction form
    100,557.18/150,699.69 = 38,193.66/x
  3. Step 3: Cross multiply
    100,557.18x = 150,699.69 × 38,193.66
  4. Step 4: Simplify right side
    100,557.18x = 5,755,772,721.97
  5. Step 5: Solve for x
    x = 5,755,772,721.97/100,557.18
  6. Step 6: Final answer
    x = 57,238.80

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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.