Home / 156,738.54-216,333.64-103,028.56

Finding the Fourth Proportional to 156,738.54, 216,333.64 and 103,028.56

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Solution

The fourth proportional to 156,738.54, 216,333.64 and 103,028.56 is: 142,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,738.54 : 216,333.64 = 103,028.56 : x
  2. Step 2: Convert to fraction form
    156,738.54/216,333.64 = 103,028.56/x
  3. Step 3: Cross multiply
    156,738.54x = 216,333.64 × 103,028.56
  4. Step 4: Simplify right side
    156,738.54x = 22,288,542,417.17
  5. Step 5: Solve for x
    x = 22,288,542,417.17/156,738.54
  6. Step 6: Final answer
    x = 142,202.05

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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.