Home / 275,824.20-413,728.05-76,156.77

Finding the Fourth Proportional to 275,824.20, 413,728.05 and 76,156.77

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Solution

The fourth proportional to 275,824.20, 413,728.05 and 76,156.77 is: 114,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,824.20 : 413,728.05 = 76,156.77 : x
  2. Step 2: Convert to fraction form
    275,824.20/413,728.05 = 76,156.77/x
  3. Step 3: Cross multiply
    275,824.20x = 413,728.05 × 76,156.77
  4. Step 4: Simplify right side
    275,824.20x = 31,508,191,946.40
  5. Step 5: Solve for x
    x = 31,508,191,946.40/275,824.20
  6. Step 6: Final answer
    x = 114,232.88

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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.