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Finding the Fourth Proportional to 149,940.40, 224,766.60 and 86,695.60

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Solution

The fourth proportional to 149,940.40, 224,766.60 and 86,695.60 is: 129,960.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,940.40 : 224,766.60 = 86,695.60 : x
  2. Step 2: Convert to fraction form
    149,940.40/224,766.60 = 86,695.60/x
  3. Step 3: Cross multiply
    149,940.40x = 224,766.60 × 86,695.60
  4. Step 4: Simplify right side
    149,940.40x = 19,486,275,246.96
  5. Step 5: Solve for x
    x = 19,486,275,246.96/149,940.40
  6. Step 6: Final answer
    x = 129,960.14

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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.