Home / 143,299.48-197,691.94-89,491.08

Finding the Fourth Proportional to 143,299.48, 197,691.94 and 89,491.08

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Solution

The fourth proportional to 143,299.48, 197,691.94 and 89,491.08 is: 123,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,299.48 : 197,691.94 = 89,491.08 : x
  2. Step 2: Convert to fraction form
    143,299.48/197,691.94 = 89,491.08/x
  3. Step 3: Cross multiply
    143,299.48x = 197,691.94 × 89,491.08
  4. Step 4: Simplify right side
    143,299.48x = 17,691,665,217.90
  5. Step 5: Solve for x
    x = 17,691,665,217.90/143,299.48
  6. Step 6: Final answer
    x = 123,459.38

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1.5x scale

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.