Home / 112,502.25-168,670.08-68,118.57

Finding the Fourth Proportional to 112,502.25, 168,670.08 and 68,118.57

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Solution

The fourth proportional to 112,502.25, 168,670.08 and 68,118.57 is: 102,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,502.25 : 168,670.08 = 68,118.57 : x
  2. Step 2: Convert to fraction form
    112,502.25/168,670.08 = 68,118.57/x
  3. Step 3: Cross multiply
    112,502.25x = 168,670.08 × 68,118.57
  4. Step 4: Simplify right side
    112,502.25x = 11,489,564,651.39
  5. Step 5: Solve for x
    x = 11,489,564,651.39/112,502.25
  6. Step 6: Final answer
    x = 102,127.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.