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Finding the Fourth Proportional to 134,921.60, 202,209.60 and 103,601.60

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Solution

The fourth proportional to 134,921.60, 202,209.60 and 103,601.60 is: 155,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,921.60 : 202,209.60 = 103,601.60 : x
  2. Step 2: Convert to fraction form
    134,921.60/202,209.60 = 103,601.60/x
  3. Step 3: Cross multiply
    134,921.60x = 202,209.60 × 103,601.60
  4. Step 4: Simplify right side
    134,921.60x = 20,949,238,095.36
  5. Step 5: Solve for x
    x = 20,949,238,095.36/134,921.60
  6. Step 6: Final answer
    x = 155,269.71

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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.