Home / 135,989.23-187,604.76-90,623.02

Finding the Fourth Proportional to 135,989.23, 187,604.76 and 90,623.02

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Solution

The fourth proportional to 135,989.23, 187,604.76 and 90,623.02 is: 125,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,989.23 : 187,604.76 = 90,623.02 : x
  2. Step 2: Convert to fraction form
    135,989.23/187,604.76 = 90,623.02/x
  3. Step 3: Cross multiply
    135,989.23x = 187,604.76 × 90,623.02
  4. Step 4: Simplify right side
    135,989.23x = 17,001,309,917.58
  5. Step 5: Solve for x
    x = 17,001,309,917.58/135,989.23
  6. Step 6: Final answer
    x = 125,019.53

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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.