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Finding the Fourth Proportional to 134,980.40, 202,470.60 and 108,736.40

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Solution

The fourth proportional to 134,980.40, 202,470.60 and 108,736.40 is: 163,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,980.40 : 202,470.60 = 108,736.40 : x
  2. Step 2: Convert to fraction form
    134,980.40/202,470.60 = 108,736.40/x
  3. Step 3: Cross multiply
    134,980.40x = 202,470.60 × 108,736.40
  4. Step 4: Simplify right side
    134,980.40x = 22,015,924,149.84
  5. Step 5: Solve for x
    x = 22,015,924,149.84/134,980.40
  6. Step 6: Final answer
    x = 163,104.60

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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.