Home / 206,256.72-309,340.53-73,141.32

Finding the Fourth Proportional to 206,256.72, 309,340.53 and 73,141.32

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Solution

The fourth proportional to 206,256.72, 309,340.53 and 73,141.32 is: 109,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,256.72 : 309,340.53 = 73,141.32 : x
  2. Step 2: Convert to fraction form
    206,256.72/309,340.53 = 73,141.32/x
  3. Step 3: Cross multiply
    206,256.72x = 309,340.53 × 73,141.32
  4. Step 4: Simplify right side
    206,256.72x = 22,625,574,693.70
  5. Step 5: Solve for x
    x = 22,625,574,693.70/206,256.72
  6. Step 6: Final answer
    x = 109,696.18

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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.