Home / 186,981.08-280,024.61-107,855.42

Finding the Fourth Proportional to 186,981.08, 280,024.61 and 107,855.42

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Solution

The fourth proportional to 186,981.08, 280,024.61 and 107,855.42 is: 161,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,981.08 : 280,024.61 = 107,855.42 : x
  2. Step 2: Convert to fraction form
    186,981.08/280,024.61 = 107,855.42/x
  3. Step 3: Cross multiply
    186,981.08x = 280,024.61 × 107,855.42
  4. Step 4: Simplify right side
    186,981.08x = 30,202,172,082.67
  5. Step 5: Solve for x
    x = 30,202,172,082.67/186,981.08
  6. Step 6: Final answer
    x = 161,525.28

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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.