Home / 117,115.43-161,613.15-68,710.62

Finding the Fourth Proportional to 117,115.43, 161,613.15 and 68,710.62

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Solution

The fourth proportional to 117,115.43, 161,613.15 and 68,710.62 is: 94,817.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.43 : 161,613.15 = 68,710.62 : x
  2. Step 2: Convert to fraction form
    117,115.43/161,613.15 = 68,710.62/x
  3. Step 3: Cross multiply
    117,115.43x = 161,613.15 × 68,710.62
  4. Step 4: Simplify right side
    117,115.43x = 11,104,539,736.65
  5. Step 5: Solve for x
    x = 11,104,539,736.65/117,115.43
  6. Step 6: Final answer
    x = 94,817.06

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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.