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Finding the Fourth Proportional to 91,601.60, 137,445.60 and 68,273.60

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Solution

The fourth proportional to 91,601.60, 137,445.60 and 68,273.60 is: 102,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,601.60 : 137,445.60 = 68,273.60 : x
  2. Step 2: Convert to fraction form
    91,601.60/137,445.60 = 68,273.60/x
  3. Step 3: Cross multiply
    91,601.60x = 137,445.60 × 68,273.60
  4. Step 4: Simplify right side
    91,601.60x = 9,383,905,916.16
  5. Step 5: Solve for x
    x = 9,383,905,916.16/91,601.60
  6. Step 6: Final answer
    x = 102,442.60

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1.5x scale

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.