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Finding the Fourth Proportional to 100,937.88, 151,264.05 and 55,979.13

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Solution

The fourth proportional to 100,937.88, 151,264.05 and 55,979.13 is: 83,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,937.88 : 151,264.05 = 55,979.13 : x
  2. Step 2: Convert to fraction form
    100,937.88/151,264.05 = 55,979.13/x
  3. Step 3: Cross multiply
    100,937.88x = 151,264.05 × 55,979.13
  4. Step 4: Simplify right side
    100,937.88x = 8,467,629,919.28
  5. Step 5: Solve for x
    x = 8,467,629,919.28/100,937.88
  6. Step 6: Final answer
    x = 83,889.52

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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.