Home / 89,849.10-134,773.65-81,101.10

Finding the Fourth Proportional to 89,849.10, 134,773.65 and 81,101.10

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Solution

The fourth proportional to 89,849.10, 134,773.65 and 81,101.10 is: 121,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,849.10 : 134,773.65 = 81,101.10 : x
  2. Step 2: Convert to fraction form
    89,849.10/134,773.65 = 81,101.10/x
  3. Step 3: Cross multiply
    89,849.10x = 134,773.65 × 81,101.10
  4. Step 4: Simplify right side
    89,849.10x = 10,930,291,266.02
  5. Step 5: Solve for x
    x = 10,930,291,266.02/89,849.10
  6. Step 6: Final answer
    x = 121,651.65

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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.