Home / 116,215.20-160,453.68-89,308.80

Finding the Fourth Proportional to 116,215.20, 160,453.68 and 89,308.80

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Solution

The fourth proportional to 116,215.20, 160,453.68 and 89,308.80 is: 123,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,215.20 : 160,453.68 = 89,308.80 : x
  2. Step 2: Convert to fraction form
    116,215.20/160,453.68 = 89,308.80/x
  3. Step 3: Cross multiply
    116,215.20x = 160,453.68 × 89,308.80
  4. Step 4: Simplify right side
    116,215.20x = 14,329,925,616.38
  5. Step 5: Solve for x
    x = 14,329,925,616.38/116,215.20
  6. Step 6: Final answer
    x = 123,305.09

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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.