Home / 206,521.12-309,785.08-56,760.48

Finding the Fourth Proportional to 206,521.12, 309,785.08 and 56,760.48

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Solution

The fourth proportional to 206,521.12, 309,785.08 and 56,760.48 is: 85,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,521.12 : 309,785.08 = 56,760.48 : x
  2. Step 2: Convert to fraction form
    206,521.12/309,785.08 = 56,760.48/x
  3. Step 3: Cross multiply
    206,521.12x = 309,785.08 × 56,760.48
  4. Step 4: Simplify right side
    206,521.12x = 17,583,549,837.64
  5. Step 5: Solve for x
    x = 17,583,549,837.64/206,521.12
  6. Step 6: Final answer
    x = 85,141.65

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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.