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Finding the Fourth Proportional to 144,960.60, 217,440.90 and 89,664.60

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Solution

The fourth proportional to 144,960.60, 217,440.90 and 89,664.60 is: 134,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,960.60 : 217,440.90 = 89,664.60 : x
  2. Step 2: Convert to fraction form
    144,960.60/217,440.90 = 89,664.60/x
  3. Step 3: Cross multiply
    144,960.60x = 217,440.90 × 89,664.60
  4. Step 4: Simplify right side
    144,960.60x = 19,496,751,322.14
  5. Step 5: Solve for x
    x = 19,496,751,322.14/144,960.60
  6. Step 6: Final answer
    x = 134,496.90

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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.