Home / 228,942.43-315,956.75-126,977.61

Finding the Fourth Proportional to 228,942.43, 315,956.75 and 126,977.61

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Solution

The fourth proportional to 228,942.43, 315,956.75 and 126,977.61 is: 175,238.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,942.43 : 315,956.75 = 126,977.61 : x
  2. Step 2: Convert to fraction form
    228,942.43/315,956.75 = 126,977.61/x
  3. Step 3: Cross multiply
    228,942.43x = 315,956.75 × 126,977.61
  4. Step 4: Simplify right side
    228,942.43x = 40,119,430,763.70
  5. Step 5: Solve for x
    x = 40,119,430,763.70/228,942.43
  6. Step 6: Final answer
    x = 175,238.08

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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.