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Finding the Fourth Proportional to 156.07, 233.70 and 125.47

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Solution

The fourth proportional to 156.07, 233.70 and 125.47 is: 187.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156.07 : 233.70 = 125.47 : x
  2. Step 2: Convert to fraction form
    156.07/233.70 = 125.47/x
  3. Step 3: Cross multiply
    156.07x = 233.70 × 125.47
  4. Step 4: Simplify right side
    156.07x = 29,322.34
  5. Step 5: Solve for x
    x = 29,322.34/156.07
  6. Step 6: Final answer
    x = 187.88

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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.