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Finding the Fourth Proportional to 135,818.08, 203,730.98 and 35,978.29

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Solution

The fourth proportional to 135,818.08, 203,730.98 and 35,978.29 is: 53,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,818.08 : 203,730.98 = 35,978.29 : x
  2. Step 2: Convert to fraction form
    135,818.08/203,730.98 = 35,978.29/x
  3. Step 3: Cross multiply
    135,818.08x = 203,730.98 × 35,978.29
  4. Step 4: Simplify right side
    135,818.08x = 7,329,891,591.21
  5. Step 5: Solve for x
    x = 7,329,891,591.21/135,818.08
  6. Step 6: Final answer
    x = 53,968.45

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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.