Home / 122,732.64-169,287.75-79,635.12

Finding the Fourth Proportional to 122,732.64, 169,287.75 and 79,635.12

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Solution

The fourth proportional to 122,732.64, 169,287.75 and 79,635.12 is: 109,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,732.64 : 169,287.75 = 79,635.12 : x
  2. Step 2: Convert to fraction form
    122,732.64/169,287.75 = 79,635.12/x
  3. Step 3: Cross multiply
    122,732.64x = 169,287.75 × 79,635.12
  4. Step 4: Simplify right side
    122,732.64x = 13,481,250,285.78
  5. Step 5: Solve for x
    x = 13,481,250,285.78/122,732.64
  6. Step 6: Final answer
    x = 109,842.42

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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.