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Finding the Fourth Proportional to 117.35, 176.28 and 106.01

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Solution

The fourth proportional to 117.35, 176.28 and 106.01 is: 159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.35 : 176.28 = 106.01 : x
  2. Step 2: Convert to fraction form
    117.35/176.28 = 106.01/x
  3. Step 3: Cross multiply
    117.35x = 176.28 × 106.01
  4. Step 4: Simplify right side
    117.35x = 18,686.82
  5. Step 5: Solve for x
    x = 18,686.82/117.35
  6. Step 6: Final answer
    x = 159.24

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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.