Home / 162,979.12-224,910.78-99,317.08

Finding the Fourth Proportional to 162,979.12, 224,910.78 and 99,317.08

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Solution

The fourth proportional to 162,979.12, 224,910.78 and 99,317.08 is: 137,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,979.12 : 224,910.78 = 99,317.08 : x
  2. Step 2: Convert to fraction form
    162,979.12/224,910.78 = 99,317.08/x
  3. Step 3: Cross multiply
    162,979.12x = 224,910.78 × 99,317.08
  4. Step 4: Simplify right side
    162,979.12x = 22,337,481,930.12
  5. Step 5: Solve for x
    x = 22,337,481,930.12/162,979.12
  6. Step 6: Final answer
    x = 137,057.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.