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Finding the Fourth Proportional to 149,270.72, 205,960.24 and 125,169.17

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Solution

The fourth proportional to 149,270.72, 205,960.24 and 125,169.17 is: 172,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,270.72 : 205,960.24 = 125,169.17 : x
  2. Step 2: Convert to fraction form
    149,270.72/205,960.24 = 125,169.17/x
  3. Step 3: Cross multiply
    149,270.72x = 205,960.24 × 125,169.17
  4. Step 4: Simplify right side
    149,270.72x = 25,779,872,965.16
  5. Step 5: Solve for x
    x = 25,779,872,965.16/149,270.72
  6. Step 6: Final answer
    x = 172,705.49

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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.