Home / 135,851.55-187,481.19-75,423.03

Finding the Fourth Proportional to 135,851.55, 187,481.19 and 75,423.03

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Solution

The fourth proportional to 135,851.55, 187,481.19 and 75,423.03 is: 104,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,851.55 : 187,481.19 = 75,423.03 : x
  2. Step 2: Convert to fraction form
    135,851.55/187,481.19 = 75,423.03/x
  3. Step 3: Cross multiply
    135,851.55x = 187,481.19 × 75,423.03
  4. Step 4: Simplify right side
    135,851.55x = 14,140,399,417.81
  5. Step 5: Solve for x
    x = 14,140,399,417.81/135,851.55
  6. Step 6: Final answer
    x = 104,087.14

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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.