Home / 99,889.62-149,833.89-40,725.06

Finding the Fourth Proportional to 99,889.62, 149,833.89 and 40,725.06

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Solution

The fourth proportional to 99,889.62, 149,833.89 and 40,725.06 is: 61,087.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.62 : 149,833.89 = 40,725.06 : x
  2. Step 2: Convert to fraction form
    99,889.62/149,833.89 = 40,725.06/x
  3. Step 3: Cross multiply
    99,889.62x = 149,833.89 × 40,725.06
  4. Step 4: Simplify right side
    99,889.62x = 6,101,994,160.28
  5. Step 5: Solve for x
    x = 6,101,994,160.28/99,889.62
  6. Step 6: Final answer
    x = 61,087.37

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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.