Home / 122,486.40-169,049.70-74,767.41

Finding the Fourth Proportional to 122,486.40, 169,049.70 and 74,767.41

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Solution

The fourth proportional to 122,486.40, 169,049.70 and 74,767.41 is: 103,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,486.40 : 169,049.70 = 74,767.41 : x
  2. Step 2: Convert to fraction form
    122,486.40/169,049.70 = 74,767.41/x
  3. Step 3: Cross multiply
    122,486.40x = 169,049.70 × 74,767.41
  4. Step 4: Simplify right side
    122,486.40x = 12,639,408,230.28
  5. Step 5: Solve for x
    x = 12,639,408,230.28/122,486.40
  6. Step 6: Final answer
    x = 103,190.30

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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.