Home / 114,619.88-171,921.68-30,378.18

Finding the Fourth Proportional to 114,619.88, 171,921.68 and 30,378.18

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Solution

The fourth proportional to 114,619.88, 171,921.68 and 30,378.18 is: 45,565.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,619.88 : 171,921.68 = 30,378.18 : x
  2. Step 2: Convert to fraction form
    114,619.88/171,921.68 = 30,378.18/x
  3. Step 3: Cross multiply
    114,619.88x = 171,921.68 × 30,378.18
  4. Step 4: Simplify right side
    114,619.88x = 5,222,667,740.94
  5. Step 5: Solve for x
    x = 5,222,667,740.94/114,619.88
  6. Step 6: Final answer
    x = 45,565.11

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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.