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Finding the Fourth Proportional to 174,019.70, 261,029.55 and 80,707.70

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Solution

The fourth proportional to 174,019.70, 261,029.55 and 80,707.70 is: 121,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,019.70 : 261,029.55 = 80,707.70 : x
  2. Step 2: Convert to fraction form
    174,019.70/261,029.55 = 80,707.70/x
  3. Step 3: Cross multiply
    174,019.70x = 261,029.55 × 80,707.70
  4. Step 4: Simplify right side
    174,019.70x = 21,067,094,612.54
  5. Step 5: Solve for x
    x = 21,067,094,612.54/174,019.70
  6. Step 6: Final answer
    x = 121,061.55

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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.