Home / 156,942.28-216,627.78-106,670.44

Finding the Fourth Proportional to 156,942.28, 216,627.78 and 106,670.44

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Solution

The fourth proportional to 156,942.28, 216,627.78 and 106,670.44 is: 147,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,942.28 : 216,627.78 = 106,670.44 : x
  2. Step 2: Convert to fraction form
    156,942.28/216,627.78 = 106,670.44/x
  3. Step 3: Cross multiply
    156,942.28x = 216,627.78 × 106,670.44
  4. Step 4: Simplify right side
    156,942.28x = 23,107,780,608.82
  5. Step 5: Solve for x
    x = 23,107,780,608.82/156,942.28
  6. Step 6: Final answer
    x = 147,237.45

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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.