Home / 217,031.67-299,504.03-121,538.39

Finding the Fourth Proportional to 217,031.67, 299,504.03 and 121,538.39

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Solution

The fourth proportional to 217,031.67, 299,504.03 and 121,538.39 is: 167,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,031.67 : 299,504.03 = 121,538.39 : x
  2. Step 2: Convert to fraction form
    217,031.67/299,504.03 = 121,538.39/x
  3. Step 3: Cross multiply
    217,031.67x = 299,504.03 × 121,538.39
  4. Step 4: Simplify right side
    217,031.67x = 36,401,235,499.50
  5. Step 5: Solve for x
    x = 36,401,235,499.50/217,031.67
  6. Step 6: Final answer
    x = 167,723.15

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1.5x scale

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.