Home / 221,529.96-305,707.43-126,034.61

Finding the Fourth Proportional to 221,529.96, 305,707.43 and 126,034.61

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Solution

The fourth proportional to 221,529.96, 305,707.43 and 126,034.61 is: 173,925.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,529.96 : 305,707.43 = 126,034.61 : x
  2. Step 2: Convert to fraction form
    221,529.96/305,707.43 = 126,034.61/x
  3. Step 3: Cross multiply
    221,529.96x = 305,707.43 × 126,034.61
  4. Step 4: Simplify right side
    221,529.96x = 38,529,715,500.70
  5. Step 5: Solve for x
    x = 38,529,715,500.70/221,529.96
  6. Step 6: Final answer
    x = 173,925.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.