Home / 215,155.02-322,743.06-82,010.46

Finding the Fourth Proportional to 215,155.02, 322,743.06 and 82,010.46

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Solution

The fourth proportional to 215,155.02, 322,743.06 and 82,010.46 is: 123,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,155.02 : 322,743.06 = 82,010.46 : x
  2. Step 2: Convert to fraction form
    215,155.02/322,743.06 = 82,010.46/x
  3. Step 3: Cross multiply
    215,155.02x = 322,743.06 × 82,010.46
  4. Step 4: Simplify right side
    215,155.02x = 26,468,306,812.41
  5. Step 5: Solve for x
    x = 26,468,306,812.41/215,155.02
  6. Step 6: Final answer
    x = 123,019.70

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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.