Home / 140,920.88-194,572.87-90,707.36

Finding the Fourth Proportional to 140,920.88, 194,572.87 and 90,707.36

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Solution

The fourth proportional to 140,920.88, 194,572.87 and 90,707.36 is: 125,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,920.88 : 194,572.87 = 90,707.36 : x
  2. Step 2: Convert to fraction form
    140,920.88/194,572.87 = 90,707.36/x
  3. Step 3: Cross multiply
    140,920.88x = 194,572.87 × 90,707.36
  4. Step 4: Simplify right side
    140,920.88x = 17,649,190,165.69
  5. Step 5: Solve for x
    x = 17,649,190,165.69/140,920.88
  6. Step 6: Final answer
    x = 125,241.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.