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Finding the Fourth Proportional to 114,218.17, 171,139.98 and 80,878.38

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Solution

The fourth proportional to 114,218.17, 171,139.98 and 80,878.38 is: 121,184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,218.17 : 171,139.98 = 80,878.38 : x
  2. Step 2: Convert to fraction form
    114,218.17/171,139.98 = 80,878.38/x
  3. Step 3: Cross multiply
    114,218.17x = 171,139.98 × 80,878.38
  4. Step 4: Simplify right side
    114,218.17x = 13,841,524,537.83
  5. Step 5: Solve for x
    x = 13,841,524,537.83/114,218.17
  6. Step 6: Final answer
    x = 121,184.96

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