Home / 128,391.42-192,586.58-34,896.90

Finding the Fourth Proportional to 128,391.42, 192,586.58 and 34,896.90

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Solution

The fourth proportional to 128,391.42, 192,586.58 and 34,896.90 is: 52,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,391.42 : 192,586.58 = 34,896.90 : x
  2. Step 2: Convert to fraction form
    128,391.42/192,586.58 = 34,896.90/x
  3. Step 3: Cross multiply
    128,391.42x = 192,586.58 × 34,896.90
  4. Step 4: Simplify right side
    128,391.42x = 6,720,674,623.60
  5. Step 5: Solve for x
    x = 6,720,674,623.60/128,391.42
  6. Step 6: Final answer
    x = 52,345.20

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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.