Home / 113,578.67-156,738.79-68,257.35

Finding the Fourth Proportional to 113,578.67, 156,738.79 and 68,257.35

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Solution

The fourth proportional to 113,578.67, 156,738.79 and 68,257.35 is: 94,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,578.67 : 156,738.79 = 68,257.35 : x
  2. Step 2: Convert to fraction form
    113,578.67/156,738.79 = 68,257.35/x
  3. Step 3: Cross multiply
    113,578.67x = 156,738.79 × 68,257.35
  4. Step 4: Simplify right side
    113,578.67x = 10,698,574,447.61
  5. Step 5: Solve for x
    x = 10,698,574,447.61/113,578.67
  6. Step 6: Final answer
    x = 94,195.28

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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.