Home / 206,746.08-309,922.29-66,406.32

Finding the Fourth Proportional to 206,746.08, 309,922.29 and 66,406.32

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Solution

The fourth proportional to 206,746.08, 309,922.29 and 66,406.32 is: 99,546.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,746.08 : 309,922.29 = 66,406.32 : x
  2. Step 2: Convert to fraction form
    206,746.08/309,922.29 = 66,406.32/x
  3. Step 3: Cross multiply
    206,746.08x = 309,922.29 × 66,406.32
  4. Step 4: Simplify right side
    206,746.08x = 20,580,798,764.87
  5. Step 5: Solve for x
    x = 20,580,798,764.87/206,746.08
  6. Step 6: Final answer
    x = 99,546.26

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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.