Home / 128,384.28-192,605.58-49,502.88

Finding the Fourth Proportional to 128,384.28, 192,605.58 and 49,502.88

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Solution

The fourth proportional to 128,384.28, 192,605.58 and 49,502.88 is: 74,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,384.28 : 192,605.58 = 49,502.88 : x
  2. Step 2: Convert to fraction form
    128,384.28/192,605.58 = 49,502.88/x
  3. Step 3: Cross multiply
    128,384.28x = 192,605.58 × 49,502.88
  4. Step 4: Simplify right side
    128,384.28x = 9,534,530,914.07
  5. Step 5: Solve for x
    x = 9,534,530,914.07/128,384.28
  6. Step 6: Final answer
    x = 74,265.56

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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.