Home / 103,803.75-155,716.56-47,634.30

Finding the Fourth Proportional to 103,803.75, 155,716.56 and 47,634.30

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Solution

The fourth proportional to 103,803.75, 155,716.56 and 47,634.30 is: 71,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.75 : 155,716.56 = 47,634.30 : x
  2. Step 2: Convert to fraction form
    103,803.75/155,716.56 = 47,634.30/x
  3. Step 3: Cross multiply
    103,803.75x = 155,716.56 × 47,634.30
  4. Step 4: Simplify right side
    103,803.75x = 7,417,449,334.01
  5. Step 5: Solve for x
    x = 7,417,449,334.01/103,803.75
  6. Step 6: Final answer
    x = 71,456.47

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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.