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Finding the Fourth Proportional to 157,163.76, 235,781.28 and 51,982.56

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Solution

The fourth proportional to 157,163.76, 235,781.28 and 51,982.56 is: 77,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,163.76 : 235,781.28 = 51,982.56 : x
  2. Step 2: Convert to fraction form
    157,163.76/235,781.28 = 51,982.56/x
  3. Step 3: Cross multiply
    157,163.76x = 235,781.28 × 51,982.56
  4. Step 4: Simplify right side
    157,163.76x = 12,256,514,534.48
  5. Step 5: Solve for x
    x = 12,256,514,534.48/157,163.76
  6. Step 6: Final answer
    x = 77,985.63

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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.