Home / 128,239.45-192,370.11-33,482.21

Finding the Fourth Proportional to 128,239.45, 192,370.11 and 33,482.21

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Solution

The fourth proportional to 128,239.45, 192,370.11 and 33,482.21 is: 50,226.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,239.45 : 192,370.11 = 33,482.21 : x
  2. Step 2: Convert to fraction form
    128,239.45/192,370.11 = 33,482.21/x
  3. Step 3: Cross multiply
    128,239.45x = 192,370.11 × 33,482.21
  4. Step 4: Simplify right side
    128,239.45x = 6,440,975,939.82
  5. Step 5: Solve for x
    x = 6,440,975,939.82/128,239.45
  6. Step 6: Final answer
    x = 50,226.17

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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.