Home / 279,502.94-419,166.15-89,921.07

Finding the Fourth Proportional to 279,502.94, 419,166.15 and 89,921.07

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Solution

The fourth proportional to 279,502.94, 419,166.15 and 89,921.07 is: 134,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,502.94 : 419,166.15 = 89,921.07 : x
  2. Step 2: Convert to fraction form
    279,502.94/419,166.15 = 89,921.07/x
  3. Step 3: Cross multiply
    279,502.94x = 419,166.15 × 89,921.07
  4. Step 4: Simplify right side
    279,502.94x = 37,691,868,715.78
  5. Step 5: Solve for x
    x = 37,691,868,715.78/279,502.94
  6. Step 6: Final answer
    x = 134,853.21

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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.