Home / 126,168.78-189,253.18-51,329.62

Finding the Fourth Proportional to 126,168.78, 189,253.18 and 51,329.62

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Solution

The fourth proportional to 126,168.78, 189,253.18 and 51,329.62 is: 76,994.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,168.78 : 189,253.18 = 51,329.62 : x
  2. Step 2: Convert to fraction form
    126,168.78/189,253.18 = 51,329.62/x
  3. Step 3: Cross multiply
    126,168.78x = 189,253.18 × 51,329.62
  4. Step 4: Simplify right side
    126,168.78x = 9,714,293,813.19
  5. Step 5: Solve for x
    x = 9,714,293,813.19/126,168.78
  6. Step 6: Final answer
    x = 76,994.43

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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.