Home / 117,162.70-161,690.41-68,766.72

Finding the Fourth Proportional to 117,162.70, 161,690.41 and 68,766.72

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Solution

The fourth proportional to 117,162.70, 161,690.41 and 68,766.72 is: 94,901.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,162.70 : 161,690.41 = 68,766.72 : x
  2. Step 2: Convert to fraction form
    117,162.70/161,690.41 = 68,766.72/x
  3. Step 3: Cross multiply
    117,162.70x = 161,690.41 × 68,766.72
  4. Step 4: Simplify right side
    117,162.70x = 11,118,919,151.16
  5. Step 5: Solve for x
    x = 11,118,919,151.16/117,162.70
  6. Step 6: Final answer
    x = 94,901.53

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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.