Home / 122,515.56-169,089.78-74,796.63

Finding the Fourth Proportional to 122,515.56, 169,089.78 and 74,796.63

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Solution

The fourth proportional to 122,515.56, 169,089.78 and 74,796.63 is: 103,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,515.56 : 169,089.78 = 74,796.63 : x
  2. Step 2: Convert to fraction form
    122,515.56/169,089.78 = 74,796.63/x
  3. Step 3: Cross multiply
    122,515.56x = 169,089.78 × 74,796.63
  4. Step 4: Simplify right side
    122,515.56x = 12,647,345,711.44
  5. Step 5: Solve for x
    x = 12,647,345,711.44/122,515.56
  6. Step 6: Final answer
    x = 103,230.53

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1.5x scale

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.