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Finding the Fourth Proportional to 128,794.60, 193,232.40 and 62,236.90

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Solution

The fourth proportional to 128,794.60, 193,232.40 and 62,236.90 is: 93,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,794.60 : 193,232.40 = 62,236.90 : x
  2. Step 2: Convert to fraction form
    128,794.60/193,232.40 = 62,236.90/x
  3. Step 3: Cross multiply
    128,794.60x = 193,232.40 × 62,236.90
  4. Step 4: Simplify right side
    128,794.60x = 12,026,185,555.56
  5. Step 5: Solve for x
    x = 12,026,185,555.56/128,794.60
  6. Step 6: Final answer
    x = 93,374.92

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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.