Home / 179,719.80-269,579.70-86,177.40

Finding the Fourth Proportional to 179,719.80, 269,579.70 and 86,177.40

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Solution

The fourth proportional to 179,719.80, 269,579.70 and 86,177.40 is: 129,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,719.80 : 269,579.70 = 86,177.40 : x
  2. Step 2: Convert to fraction form
    179,719.80/269,579.70 = 86,177.40/x
  3. Step 3: Cross multiply
    179,719.80x = 269,579.70 × 86,177.40
  4. Step 4: Simplify right side
    179,719.80x = 23,231,677,638.78
  5. Step 5: Solve for x
    x = 23,231,677,638.78/179,719.80
  6. Step 6: Final answer
    x = 129,266.10

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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.