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Finding the Fourth Proportional to 143,951.60, 216,024.60 and 80,771.60

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Solution

The fourth proportional to 143,951.60, 216,024.60 and 80,771.60 is: 121,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,951.60 : 216,024.60 = 80,771.60 : x
  2. Step 2: Convert to fraction form
    143,951.60/216,024.60 = 80,771.60/x
  3. Step 3: Cross multiply
    143,951.60x = 216,024.60 × 80,771.60
  4. Step 4: Simplify right side
    143,951.60x = 17,448,652,581.36
  5. Step 5: Solve for x
    x = 17,448,652,581.36/143,951.60
  6. Step 6: Final answer
    x = 121,211.94

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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.