Home / 156,664.08-216,200.28-85,043.94

Finding the Fourth Proportional to 156,664.08, 216,200.28 and 85,043.94

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Solution

The fourth proportional to 156,664.08, 216,200.28 and 85,043.94 is: 117,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,664.08 : 216,200.28 = 85,043.94 : x
  2. Step 2: Convert to fraction form
    156,664.08/216,200.28 = 85,043.94/x
  3. Step 3: Cross multiply
    156,664.08x = 216,200.28 × 85,043.94
  4. Step 4: Simplify right side
    156,664.08x = 18,386,523,640.30
  5. Step 5: Solve for x
    x = 18,386,523,640.30/156,664.08
  6. Step 6: Final answer
    x = 117,362.73

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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.