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Finding the Fourth Proportional to 115,891.60, 173,837.40 and 45,734.80

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Solution

The fourth proportional to 115,891.60, 173,837.40 and 45,734.80 is: 68,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,891.60 : 173,837.40 = 45,734.80 : x
  2. Step 2: Convert to fraction form
    115,891.60/173,837.40 = 45,734.80/x
  3. Step 3: Cross multiply
    115,891.60x = 173,837.40 × 45,734.80
  4. Step 4: Simplify right side
    115,891.60x = 7,950,418,721.52
  5. Step 5: Solve for x
    x = 7,950,418,721.52/115,891.60
  6. Step 6: Final answer
    x = 68,602.20

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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.