Home / 128,738.28-193,060.08-44,476.86

Finding the Fourth Proportional to 128,738.28, 193,060.08 and 44,476.86

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Solution

The fourth proportional to 128,738.28, 193,060.08 and 44,476.86 is: 66,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,738.28 : 193,060.08 = 44,476.86 : x
  2. Step 2: Convert to fraction form
    128,738.28/193,060.08 = 44,476.86/x
  3. Step 3: Cross multiply
    128,738.28x = 193,060.08 × 44,476.86
  4. Step 4: Simplify right side
    128,738.28x = 8,586,706,149.75
  5. Step 5: Solve for x
    x = 8,586,706,149.75/128,738.28
  6. Step 6: Final answer
    x = 66,698.93

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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.