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Finding the Fourth Proportional to 156.61, 234.55 and 95.63

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Solution

The fourth proportional to 156.61, 234.55 and 95.63 is: 143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.61 : 234.55 = 95.63 : x
  2. Step 2: Convert to fraction form
    156.61/234.55 = 95.63/x
  3. Step 3: Cross multiply
    156.61x = 234.55 × 95.63
  4. Step 4: Simplify right side
    156.61x = 22,430.02
  5. Step 5: Solve for x
    x = 22,430.02/156.61
  6. Step 6: Final answer
    x = 143.22

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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.