Home / 206,031.03-309,152.03-98,082.57

Finding the Fourth Proportional to 206,031.03, 309,152.03 and 98,082.57

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Solution

The fourth proportional to 206,031.03, 309,152.03 and 98,082.57 is: 147,174.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,031.03 : 309,152.03 = 98,082.57 : x
  2. Step 2: Convert to fraction form
    206,031.03/309,152.03 = 98,082.57/x
  3. Step 3: Cross multiply
    206,031.03x = 309,152.03 × 98,082.57
  4. Step 4: Simplify right side
    206,031.03x = 30,322,424,359.82
  5. Step 5: Solve for x
    x = 30,322,424,359.82/206,031.03
  6. Step 6: Final answer
    x = 147,174.07

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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.