Home / 156,217.85-215,580.31-84,597.65

Finding the Fourth Proportional to 156,217.85, 215,580.31 and 84,597.65

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Solution

The fourth proportional to 156,217.85, 215,580.31 and 84,597.65 is: 116,744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.85 : 215,580.31 = 84,597.65 : x
  2. Step 2: Convert to fraction form
    156,217.85/215,580.31 = 84,597.65/x
  3. Step 3: Cross multiply
    156,217.85x = 215,580.31 × 84,597.65
  4. Step 4: Simplify right side
    156,217.85x = 18,237,587,939.73
  5. Step 5: Solve for x
    x = 18,237,587,939.73/156,217.85
  6. Step 6: Final answer
    x = 116,744.58

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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.