Home / 156,608.21-216,120.92-84,988.85

Finding the Fourth Proportional to 156,608.21, 216,120.92 and 84,988.85

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Solution

The fourth proportional to 156,608.21, 216,120.92 and 84,988.85 is: 117,285.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,608.21 : 216,120.92 = 84,988.85 : x
  2. Step 2: Convert to fraction form
    156,608.21/216,120.92 = 84,988.85/x
  3. Step 3: Cross multiply
    156,608.21x = 216,120.92 × 84,988.85
  4. Step 4: Simplify right side
    156,608.21x = 18,367,868,451.74
  5. Step 5: Solve for x
    x = 18,367,868,451.74/156,608.21
  6. Step 6: Final answer
    x = 117,285.48

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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.