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Finding the Fourth Proportional to 114,881.68, 172,322.52 and 68,109.04

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Solution

The fourth proportional to 114,881.68, 172,322.52 and 68,109.04 is: 102,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,881.68 : 172,322.52 = 68,109.04 : x
  2. Step 2: Convert to fraction form
    114,881.68/172,322.52 = 68,109.04/x
  3. Step 3: Cross multiply
    114,881.68x = 172,322.52 × 68,109.04
  4. Step 4: Simplify right side
    114,881.68x = 11,736,721,407.58
  5. Step 5: Solve for x
    x = 11,736,721,407.58/114,881.68
  6. Step 6: Final answer
    x = 102,163.56

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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.