Home / 206,521.38-284,994.72-115,875.36

Finding the Fourth Proportional to 206,521.38, 284,994.72 and 115,875.36

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Solution

The fourth proportional to 206,521.38, 284,994.72 and 115,875.36 is: 159,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,521.38 : 284,994.72 = 115,875.36 : x
  2. Step 2: Convert to fraction form
    206,521.38/284,994.72 = 115,875.36/x
  3. Step 3: Cross multiply
    206,521.38x = 284,994.72 × 115,875.36
  4. Step 4: Simplify right side
    206,521.38x = 33,023,865,778.10
  5. Step 5: Solve for x
    x = 33,023,865,778.10/206,521.38
  6. Step 6: Final answer
    x = 159,905.31

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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.