Home / 202,890.57-304,138.05-84,595.74

Finding the Fourth Proportional to 202,890.57, 304,138.05 and 84,595.74

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Solution

The fourth proportional to 202,890.57, 304,138.05 and 84,595.74 is: 126,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,890.57 : 304,138.05 = 84,595.74 : x
  2. Step 2: Convert to fraction form
    202,890.57/304,138.05 = 84,595.74/x
  3. Step 3: Cross multiply
    202,890.57x = 304,138.05 × 84,595.74
  4. Step 4: Simplify right side
    202,890.57x = 25,728,783,401.91
  5. Step 5: Solve for x
    x = 25,728,783,401.91/202,890.57
  6. Step 6: Final answer
    x = 126,811.13

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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.