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Finding the Fourth Proportional to 99,706.66, 137,588.97 and 54,995.62

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Solution

The fourth proportional to 99,706.66, 137,588.97 and 54,995.62 is: 75,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,706.66 : 137,588.97 = 54,995.62 : x
  2. Step 2: Convert to fraction form
    99,706.66/137,588.97 = 54,995.62/x
  3. Step 3: Cross multiply
    99,706.66x = 137,588.97 × 54,995.62
  4. Step 4: Simplify right side
    99,706.66x = 7,566,790,710.31
  5. Step 5: Solve for x
    x = 7,566,790,710.31/99,706.66
  6. Step 6: Final answer
    x = 75,890.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.