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Finding the Fourth Proportional to 137,349.46, 206,960.06 and 112,936.38

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Solution

The fourth proportional to 137,349.46, 206,960.06 and 112,936.38 is: 170,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,349.46 : 206,960.06 = 112,936.38 : x
  2. Step 2: Convert to fraction form
    137,349.46/206,960.06 = 112,936.38/x
  3. Step 3: Cross multiply
    137,349.46x = 206,960.06 × 112,936.38
  4. Step 4: Simplify right side
    137,349.46x = 23,373,319,980.98
  5. Step 5: Solve for x
    x = 23,373,319,980.98/137,349.46
  6. Step 6: Final answer
    x = 170,174.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.