Home / 156,243.87-234,052.34-71,886.51

Finding the Fourth Proportional to 156,243.87, 234,052.34 and 71,886.51

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Solution

The fourth proportional to 156,243.87, 234,052.34 and 71,886.51 is: 107,685.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,243.87 : 234,052.34 = 71,886.51 : x
  2. Step 2: Convert to fraction form
    156,243.87/234,052.34 = 71,886.51/x
  3. Step 3: Cross multiply
    156,243.87x = 234,052.34 × 71,886.51
  4. Step 4: Simplify right side
    156,243.87x = 16,825,205,520.50
  5. Step 5: Solve for x
    x = 16,825,205,520.50/156,243.87
  6. Step 6: Final answer
    x = 107,685.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.