Home / 206,095.08-309,132.36-120,754.20

Finding the Fourth Proportional to 206,095.08, 309,132.36 and 120,754.20

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Solution

The fourth proportional to 206,095.08, 309,132.36 and 120,754.20 is: 181,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,095.08 : 309,132.36 = 120,754.20 : x
  2. Step 2: Convert to fraction form
    206,095.08/309,132.36 = 120,754.20/x
  3. Step 3: Cross multiply
    206,095.08x = 309,132.36 × 120,754.20
  4. Step 4: Simplify right side
    206,095.08x = 37,329,030,825.91
  5. Step 5: Solve for x
    x = 37,329,030,825.91/206,095.08
  6. Step 6: Final answer
    x = 181,125.29

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1.5x scale

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.