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Finding the Fourth Proportional to 137,174.32, 205,800.48 and 43,687.36

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Solution

The fourth proportional to 137,174.32, 205,800.48 and 43,687.36 is: 65,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,174.32 : 205,800.48 = 43,687.36 : x
  2. Step 2: Convert to fraction form
    137,174.32/205,800.48 = 43,687.36/x
  3. Step 3: Cross multiply
    137,174.32x = 205,800.48 × 43,687.36
  4. Step 4: Simplify right side
    137,174.32x = 8,990,879,657.93
  5. Step 5: Solve for x
    x = 8,990,879,657.93/137,174.32
  6. Step 6: Final answer
    x = 65,543.46

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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.