Home / 128,061.26-192,512.58-118,813.04

Finding the Fourth Proportional to 128,061.26, 192,512.58 and 118,813.04

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Solution

The fourth proportional to 128,061.26, 192,512.58 and 118,813.04 is: 178,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,061.26 : 192,512.58 = 118,813.04 : x
  2. Step 2: Convert to fraction form
    128,061.26/192,512.58 = 118,813.04/x
  3. Step 3: Cross multiply
    128,061.26x = 192,512.58 × 118,813.04
  4. Step 4: Simplify right side
    128,061.26x = 22,873,004,868.04
  5. Step 5: Solve for x
    x = 22,873,004,868.04/128,061.26
  6. Step 6: Final answer
    x = 178,609.87

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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.