Home / 206,637.32-309,955.98-66,494.36

Finding the Fourth Proportional to 206,637.32, 309,955.98 and 66,494.36

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Solution

The fourth proportional to 206,637.32, 309,955.98 and 66,494.36 is: 99,741.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,637.32 : 309,955.98 = 66,494.36 : x
  2. Step 2: Convert to fraction form
    206,637.32/309,955.98 = 66,494.36/x
  3. Step 3: Cross multiply
    206,637.32x = 309,955.98 × 66,494.36
  4. Step 4: Simplify right side
    206,637.32x = 20,610,324,518.27
  5. Step 5: Solve for x
    x = 20,610,324,518.27/206,637.32
  6. Step 6: Final answer
    x = 99,741.54

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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.