Home / 128,050.20-192,078.72-34,555.68

Finding the Fourth Proportional to 128,050.20, 192,078.72 and 34,555.68

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Solution

The fourth proportional to 128,050.20, 192,078.72 and 34,555.68 is: 51,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,050.20 : 192,078.72 = 34,555.68 : x
  2. Step 2: Convert to fraction form
    128,050.20/192,078.72 = 34,555.68/x
  3. Step 3: Cross multiply
    128,050.20x = 192,078.72 × 34,555.68
  4. Step 4: Simplify right side
    128,050.20x = 6,637,410,783.13
  5. Step 5: Solve for x
    x = 6,637,410,783.13/128,050.20
  6. Step 6: Final answer
    x = 51,834.44

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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.