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Finding the Fourth Proportional to 131,248.62, 181,103.58 and 73,879.56

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Solution

The fourth proportional to 131,248.62, 181,103.58 and 73,879.56 is: 101,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,248.62 : 181,103.58 = 73,879.56 : x
  2. Step 2: Convert to fraction form
    131,248.62/181,103.58 = 73,879.56/x
  3. Step 3: Cross multiply
    131,248.62x = 181,103.58 × 73,879.56
  4. Step 4: Simplify right side
    131,248.62x = 13,379,852,804.82
  5. Step 5: Solve for x
    x = 13,379,852,804.82/131,248.62
  6. Step 6: Final answer
    x = 101,942.81

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1.5x scale

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.