Home / 156,980.28-216,680.22-106,708.44

Finding the Fourth Proportional to 156,980.28, 216,680.22 and 106,708.44

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Solution

The fourth proportional to 156,980.28, 216,680.22 and 106,708.44 is: 147,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,980.28 : 216,680.22 = 106,708.44 : x
  2. Step 2: Convert to fraction form
    156,980.28/216,680.22 = 106,708.44/x
  3. Step 3: Cross multiply
    156,980.28x = 216,680.22 × 106,708.44
  4. Step 4: Simplify right side
    156,980.28x = 23,121,608,255.06
  5. Step 5: Solve for x
    x = 23,121,608,255.06/156,980.28
  6. Step 6: Final answer
    x = 147,289.89

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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.