Home / 128,074.77-192,121.38-49,189.00

Finding the Fourth Proportional to 128,074.77, 192,121.38 and 49,189.00

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Solution

The fourth proportional to 128,074.77, 192,121.38 and 49,189.00 is: 73,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,074.77 : 192,121.38 = 49,189.00 : x
  2. Step 2: Convert to fraction form
    128,074.77/192,121.38 = 49,189.00/x
  3. Step 3: Cross multiply
    128,074.77x = 192,121.38 × 49,189.00
  4. Step 4: Simplify right side
    128,074.77x = 9,450,257,354.27
  5. Step 5: Solve for x
    x = 9,450,257,354.27/128,074.77
  6. Step 6: Final answer
    x = 73,787.04

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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.