Home / 133,093.38-199,649.82-38,319.72

Finding the Fourth Proportional to 133,093.38, 199,649.82 and 38,319.72

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Solution

The fourth proportional to 133,093.38, 199,649.82 and 38,319.72 is: 57,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,093.38 : 199,649.82 = 38,319.72 : x
  2. Step 2: Convert to fraction form
    133,093.38/199,649.82 = 38,319.72/x
  3. Step 3: Cross multiply
    133,093.38x = 199,649.82 × 38,319.72
  4. Step 4: Simplify right side
    133,093.38x = 7,650,525,200.45
  5. Step 5: Solve for x
    x = 7,650,525,200.45/133,093.38
  6. Step 6: Final answer
    x = 57,482.39

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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.