Home / 151,911.42-209,550.15-91,440.06

Finding the Fourth Proportional to 151,911.42, 209,550.15 and 91,440.06

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Solution

The fourth proportional to 151,911.42, 209,550.15 and 91,440.06 is: 126,134.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,911.42 : 209,550.15 = 91,440.06 : x
  2. Step 2: Convert to fraction form
    151,911.42/209,550.15 = 91,440.06/x
  3. Step 3: Cross multiply
    151,911.42x = 209,550.15 × 91,440.06
  4. Step 4: Simplify right side
    151,911.42x = 19,161,278,289.01
  5. Step 5: Solve for x
    x = 19,161,278,289.01/151,911.42
  6. Step 6: Final answer
    x = 126,134.55

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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.