Home / 156,220.85-215,584.45-84,600.65

Finding the Fourth Proportional to 156,220.85, 215,584.45 and 84,600.65

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Solution

The fourth proportional to 156,220.85, 215,584.45 and 84,600.65 is: 116,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,220.85 : 215,584.45 = 84,600.65 : x
  2. Step 2: Convert to fraction form
    156,220.85/215,584.45 = 84,600.65/x
  3. Step 3: Cross multiply
    156,220.85x = 215,584.45 × 84,600.65
  4. Step 4: Simplify right side
    156,220.85x = 18,238,584,927.35
  5. Step 5: Solve for x
    x = 18,238,584,927.35/156,220.85
  6. Step 6: Final answer
    x = 116,748.72

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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.