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Finding the Fourth Proportional to 116.86, 175.28 and 56.03

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Solution

The fourth proportional to 116.86, 175.28 and 56.03 is: 84.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.86 : 175.28 = 56.03 : x
  2. Step 2: Convert to fraction form
    116.86/175.28 = 56.03/x
  3. Step 3: Cross multiply
    116.86x = 175.28 × 56.03
  4. Step 4: Simplify right side
    116.86x = 9,820.66
  5. Step 5: Solve for x
    x = 9,820.66/116.86
  6. Step 6: Final answer
    x = 84.04

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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.