Home / 156,786.20-216,366.08-85,166.24

Finding the Fourth Proportional to 156,786.20, 216,366.08 and 85,166.24

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Solution

The fourth proportional to 156,786.20, 216,366.08 and 85,166.24 is: 117,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786.20 : 216,366.08 = 85,166.24 : x
  2. Step 2: Convert to fraction form
    156,786.20/216,366.08 = 85,166.24/x
  3. Step 3: Cross multiply
    156,786.20x = 216,366.08 × 85,166.24
  4. Step 4: Simplify right side
    156,786.20x = 18,427,083,989.48
  5. Step 5: Solve for x
    x = 18,427,083,989.48/156,786.20
  6. Step 6: Final answer
    x = 117,530.02

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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.