Home / 132,563.20-182,912.02-78,861.82

Finding the Fourth Proportional to 132,563.20, 182,912.02 and 78,861.82

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Solution

The fourth proportional to 132,563.20, 182,912.02 and 78,861.82 is: 108,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,563.20 : 182,912.02 = 78,861.82 : x
  2. Step 2: Convert to fraction form
    132,563.20/182,912.02 = 78,861.82/x
  3. Step 3: Cross multiply
    132,563.20x = 182,912.02 × 78,861.82
  4. Step 4: Simplify right side
    132,563.20x = 14,424,774,797.08
  5. Step 5: Solve for x
    x = 14,424,774,797.08/132,563.20
  6. Step 6: Final answer
    x = 108,814.32

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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.