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Finding the Fourth Proportional to 144,437.76, 199,333.71 and 80,771.76

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Solution

The fourth proportional to 144,437.76, 199,333.71 and 80,771.76 is: 111,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,437.76 : 199,333.71 = 80,771.76 : x
  2. Step 2: Convert to fraction form
    144,437.76/199,333.71 = 80,771.76/x
  3. Step 3: Cross multiply
    144,437.76x = 199,333.71 × 80,771.76
  4. Step 4: Simplify right side
    144,437.76x = 16,100,534,584.03
  5. Step 5: Solve for x
    x = 16,100,534,584.03/144,437.76
  6. Step 6: Final answer
    x = 111,470.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.