Home / 103,750.56-155,674.44-51,131.34

Finding the Fourth Proportional to 103,750.56, 155,674.44 and 51,131.34

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Solution

The fourth proportional to 103,750.56, 155,674.44 and 51,131.34 is: 76,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,750.56 : 155,674.44 = 51,131.34 : x
  2. Step 2: Convert to fraction form
    103,750.56/155,674.44 = 51,131.34/x
  3. Step 3: Cross multiply
    103,750.56x = 155,674.44 × 51,131.34
  4. Step 4: Simplify right side
    103,750.56x = 7,959,842,720.95
  5. Step 5: Solve for x
    x = 7,959,842,720.95/103,750.56
  6. Step 6: Final answer
    x = 76,720.96

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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.