Home / 101,330.28-151,991.76-31,207.80

Finding the Fourth Proportional to 101,330.28, 151,991.76 and 31,207.80

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Solution

The fourth proportional to 101,330.28, 151,991.76 and 31,207.80 is: 46,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,330.28 : 151,991.76 = 31,207.80 : x
  2. Step 2: Convert to fraction form
    101,330.28/151,991.76 = 31,207.80/x
  3. Step 3: Cross multiply
    101,330.28x = 151,991.76 × 31,207.80
  4. Step 4: Simplify right side
    101,330.28x = 4,743,328,447.73
  5. Step 5: Solve for x
    x = 4,743,328,447.73/101,330.28
  6. Step 6: Final answer
    x = 46,810.57

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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.