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Finding the Fourth Proportional to 135,302.40, 203,342.40 and 118,195.20

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Solution

The fourth proportional to 135,302.40, 203,342.40 and 118,195.20 is: 177,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,302.40 : 203,342.40 = 118,195.20 : x
  2. Step 2: Convert to fraction form
    135,302.40/203,342.40 = 118,195.20/x
  3. Step 3: Cross multiply
    135,302.40x = 203,342.40 × 118,195.20
  4. Step 4: Simplify right side
    135,302.40x = 24,034,095,636.48
  5. Step 5: Solve for x
    x = 24,034,095,636.48/135,302.40
  6. Step 6: Final answer
    x = 177,632.44

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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.