Home / 206,895.06-285,645.89-135,395.96

Finding the Fourth Proportional to 206,895.06, 285,645.89 and 135,395.96

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Solution

The fourth proportional to 206,895.06, 285,645.89 and 135,395.96 is: 186,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,895.06 : 285,645.89 = 135,395.96 : x
  2. Step 2: Convert to fraction form
    206,895.06/285,645.89 = 135,395.96/x
  3. Step 3: Cross multiply
    206,895.06x = 285,645.89 × 135,395.96
  4. Step 4: Simplify right side
    206,895.06x = 38,675,298,406.86
  5. Step 5: Solve for x
    x = 38,675,298,406.86/206,895.06
  6. Step 6: Final answer
    x = 186,931.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.