Home / 82,132.08-123,197.80-19,802.56

Finding the Fourth Proportional to 82,132.08, 123,197.80 and 19,802.56

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Solution

The fourth proportional to 82,132.08, 123,197.80 and 19,802.56 is: 29,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,132.08 : 123,197.80 = 19,802.56 : x
  2. Step 2: Convert to fraction form
    82,132.08/123,197.80 = 19,802.56/x
  3. Step 3: Cross multiply
    82,132.08x = 123,197.80 × 19,802.56
  4. Step 4: Simplify right side
    82,132.08x = 2,439,631,826.37
  5. Step 5: Solve for x
    x = 2,439,631,826.37/82,132.08
  6. Step 6: Final answer
    x = 29,703.76

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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.