Home / 122,995.28-169,667.16-82,229.60

Finding the Fourth Proportional to 122,995.28, 169,667.16 and 82,229.60

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Solution

The fourth proportional to 122,995.28, 169,667.16 and 82,229.60 is: 113,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,995.28 : 169,667.16 = 82,229.60 : x
  2. Step 2: Convert to fraction form
    122,995.28/169,667.16 = 82,229.60/x
  3. Step 3: Cross multiply
    122,995.28x = 169,667.16 × 82,229.60
  4. Step 4: Simplify right side
    122,995.28x = 13,951,662,699.94
  5. Step 5: Solve for x
    x = 13,951,662,699.94/122,995.28
  6. Step 6: Final answer
    x = 113,432.50

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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.