Home / 128,201.70-192,244.08-53,277.21

Finding the Fourth Proportional to 128,201.70, 192,244.08 and 53,277.21

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Solution

The fourth proportional to 128,201.70, 192,244.08 and 53,277.21 is: 79,891.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,201.70 : 192,244.08 = 53,277.21 : x
  2. Step 2: Convert to fraction form
    128,201.70/192,244.08 = 53,277.21/x
  3. Step 3: Cross multiply
    128,201.70x = 192,244.08 × 53,277.21
  4. Step 4: Simplify right side
    128,201.70x = 10,242,226,993.81
  5. Step 5: Solve for x
    x = 10,242,226,993.81/128,201.70
  6. Step 6: Final answer
    x = 79,891.51

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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.