Home / 156,739.05-216,334.33-103,029.06

Finding the Fourth Proportional to 156,739.05, 216,334.33 and 103,029.06

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Solution

The fourth proportional to 156,739.05, 216,334.33 and 103,029.06 is: 142,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,739.05 : 216,334.33 = 103,029.06 : x
  2. Step 2: Convert to fraction form
    156,739.05/216,334.33 = 103,029.06/x
  3. Step 3: Cross multiply
    156,739.05x = 216,334.33 × 103,029.06
  4. Step 4: Simplify right side
    156,739.05x = 22,288,722,150.48
  5. Step 5: Solve for x
    x = 22,288,722,150.48/156,739.05
  6. Step 6: Final answer
    x = 142,202.74

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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.