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Finding the Fourth Proportional to 166.07, 229.04 and 139.98

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Solution

The fourth proportional to 166.07, 229.04 and 139.98 is: 193.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    166.07 : 229.04 = 139.98 : x
  2. Step 2: Convert to fraction form
    166.07/229.04 = 139.98/x
  3. Step 3: Cross multiply
    166.07x = 229.04 × 139.98
  4. Step 4: Simplify right side
    166.07x = 32,061.02
  5. Step 5: Solve for x
    x = 32,061.02/166.07
  6. Step 6: Final answer
    x = 193.06

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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.