Home / 149,253.48-206,144.78-98,865

Finding the Fourth Proportional to 149,253.48, 206,144.78 and 98,865

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Solution

The fourth proportional to 149,253.48, 206,144.78 and 98,865 is: 136,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,253.48 : 206,144.78 = 98,865 : x
  2. Step 2: Convert to fraction form
    149,253.48/206,144.78 = 98,865/x
  3. Step 3: Cross multiply
    149,253.48x = 206,144.78 × 98,865
  4. Step 4: Simplify right side
    149,253.48x = 20,380,503,674.70
  5. Step 5: Solve for x
    x = 20,380,503,674.70/149,253.48
  6. Step 6: Final answer
    x = 136,549.60

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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.