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Finding the Fourth Proportional to 144,960.39, 200,046.96 and 80,430.80

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Solution

The fourth proportional to 144,960.39, 200,046.96 and 80,430.80 is: 110,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,960.39 : 200,046.96 = 80,430.80 : x
  2. Step 2: Convert to fraction form
    144,960.39/200,046.96 = 80,430.80/x
  3. Step 3: Cross multiply
    144,960.39x = 200,046.96 × 80,430.80
  4. Step 4: Simplify right side
    144,960.39x = 16,089,936,030.13
  5. Step 5: Solve for x
    x = 16,089,936,030.13/144,960.39
  6. Step 6: Final answer
    x = 110,995.40

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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.