Home / 128,527.28-192,759.84-49,591.16

Finding the Fourth Proportional to 128,527.28, 192,759.84 and 49,591.16

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Solution

The fourth proportional to 128,527.28, 192,759.84 and 49,591.16 is: 74,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,527.28 : 192,759.84 = 49,591.16 : x
  2. Step 2: Convert to fraction form
    128,527.28/192,759.84 = 49,591.16/x
  3. Step 3: Cross multiply
    128,527.28x = 192,759.84 × 49,591.16
  4. Step 4: Simplify right side
    128,527.28x = 9,559,184,067.01
  5. Step 5: Solve for x
    x = 9,559,184,067.01/128,527.28
  6. Step 6: Final answer
    x = 74,374.75

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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.