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Finding the Fourth Proportional to 134,627.20, 201,940.80 and 41,120.80

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Solution

The fourth proportional to 134,627.20, 201,940.80 and 41,120.80 is: 61,681.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,627.20 : 201,940.80 = 41,120.80 : x
  2. Step 2: Convert to fraction form
    134,627.20/201,940.80 = 41,120.80/x
  3. Step 3: Cross multiply
    134,627.20x = 201,940.80 × 41,120.80
  4. Step 4: Simplify right side
    134,627.20x = 8,303,967,248.64
  5. Step 5: Solve for x
    x = 8,303,967,248.64/134,627.20
  6. Step 6: Final answer
    x = 61,681.20

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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.