Home / 213,923.76-320,881.32-73,679.28

Finding the Fourth Proportional to 213,923.76, 320,881.32 and 73,679.28

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Solution

The fourth proportional to 213,923.76, 320,881.32 and 73,679.28 is: 110,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,923.76 : 320,881.32 = 73,679.28 : x
  2. Step 2: Convert to fraction form
    213,923.76/320,881.32 = 73,679.28/x
  3. Step 3: Cross multiply
    213,923.76x = 320,881.32 × 73,679.28
  4. Step 4: Simplify right side
    213,923.76x = 23,642,304,623.05
  5. Step 5: Solve for x
    x = 23,642,304,623.05/213,923.76
  6. Step 6: Final answer
    x = 110,517.43

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1.5x scale

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.