Home / 156,311.29-215,709.29-84,693.25

Finding the Fourth Proportional to 156,311.29, 215,709.29 and 84,693.25

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Solution

The fourth proportional to 156,311.29, 215,709.29 and 84,693.25 is: 116,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,311.29 : 215,709.29 = 84,693.25 : x
  2. Step 2: Convert to fraction form
    156,311.29/215,709.29 = 84,693.25/x
  3. Step 3: Cross multiply
    156,311.29x = 215,709.29 × 84,693.25
  4. Step 4: Simplify right side
    156,311.29x = 18,269,120,401.83
  5. Step 5: Solve for x
    x = 18,269,120,401.83/156,311.29
  6. Step 6: Final answer
    x = 116,876.53

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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.