Home / 158,629.50-218,917.35-91,583.10

Finding the Fourth Proportional to 158,629.50, 218,917.35 and 91,583.10

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Solution

The fourth proportional to 158,629.50, 218,917.35 and 91,583.10 is: 126,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,629.50 : 218,917.35 = 91,583.10 : x
  2. Step 2: Convert to fraction form
    158,629.50/218,917.35 = 91,583.10/x
  3. Step 3: Cross multiply
    158,629.50x = 218,917.35 × 91,583.10
  4. Step 4: Simplify right side
    158,629.50x = 20,049,129,556.79
  5. Step 5: Solve for x
    x = 20,049,129,556.79/158,629.50
  6. Step 6: Final answer
    x = 126,389.67

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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.