Home / 82,818.24-123,986.48-74,269.60

Finding the Fourth Proportional to 82,818.24, 123,986.48 and 74,269.60

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Solution

The fourth proportional to 82,818.24, 123,986.48 and 74,269.60 is: 111,188.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,818.24 : 123,986.48 = 74,269.60 : x
  2. Step 2: Convert to fraction form
    82,818.24/123,986.48 = 74,269.60/x
  3. Step 3: Cross multiply
    82,818.24x = 123,986.48 × 74,269.60
  4. Step 4: Simplify right side
    82,818.24x = 9,208,426,275.01
  5. Step 5: Solve for x
    x = 9,208,426,275.01/82,818.24
  6. Step 6: Final answer
    x = 111,188.38

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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.