Home / 128,515.19-192,767.31-35,020.94

Finding the Fourth Proportional to 128,515.19, 192,767.31 and 35,020.94

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Solution

The fourth proportional to 128,515.19, 192,767.31 and 35,020.94 is: 52,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,515.19 : 192,767.31 = 35,020.94 : x
  2. Step 2: Convert to fraction form
    128,515.19/192,767.31 = 35,020.94/x
  3. Step 3: Cross multiply
    128,515.19x = 192,767.31 × 35,020.94
  4. Step 4: Simplify right side
    128,515.19x = 6,750,891,433.63
  5. Step 5: Solve for x
    x = 6,750,891,433.63/128,515.19
  6. Step 6: Final answer
    x = 52,529.91

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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.