Home / 138,091.99-207,054.15-90,096.25

Finding the Fourth Proportional to 138,091.99, 207,054.15 and 90,096.25

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Solution

The fourth proportional to 138,091.99, 207,054.15 and 90,096.25 is: 135,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,091.99 : 207,054.15 = 90,096.25 : x
  2. Step 2: Convert to fraction form
    138,091.99/207,054.15 = 90,096.25/x
  3. Step 3: Cross multiply
    138,091.99x = 207,054.15 × 90,096.25
  4. Step 4: Simplify right side
    138,091.99x = 18,654,802,461.94
  5. Step 5: Solve for x
    x = 18,654,802,461.94/138,091.99
  6. Step 6: Final answer
    x = 135,089.68

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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.