Home / 128,334.28-192,427.53-49,438.24

Finding the Fourth Proportional to 128,334.28, 192,427.53 and 49,438.24

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Solution

The fourth proportional to 128,334.28, 192,427.53 and 49,438.24 is: 74,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,334.28 : 192,427.53 = 49,438.24 : x
  2. Step 2: Convert to fraction form
    128,334.28/192,427.53 = 49,438.24/x
  3. Step 3: Cross multiply
    128,334.28x = 192,427.53 × 49,438.24
  4. Step 4: Simplify right side
    128,334.28x = 9,513,278,410.75
  5. Step 5: Solve for x
    x = 9,513,278,410.75/128,334.28
  6. Step 6: Final answer
    x = 74,128.90

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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.