Home / 178,579.34-267,869.01-84,800.78

Finding the Fourth Proportional to 178,579.34, 267,869.01 and 84,800.78

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Solution

The fourth proportional to 178,579.34, 267,869.01 and 84,800.78 is: 127,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,579.34 : 267,869.01 = 84,800.78 : x
  2. Step 2: Convert to fraction form
    178,579.34/267,869.01 = 84,800.78/x
  3. Step 3: Cross multiply
    178,579.34x = 267,869.01 × 84,800.78
  4. Step 4: Simplify right side
    178,579.34x = 22,715,500,985.83
  5. Step 5: Solve for x
    x = 22,715,500,985.83/178,579.34
  6. Step 6: Final answer
    x = 127,201.17

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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.