Home / 131,608.36-181,605.54-77,895.64

Finding the Fourth Proportional to 131,608.36, 181,605.54 and 77,895.64

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Solution

The fourth proportional to 131,608.36, 181,605.54 and 77,895.64 is: 107,487.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,608.36 : 181,605.54 = 77,895.64 : x
  2. Step 2: Convert to fraction form
    131,608.36/181,605.54 = 77,895.64/x
  3. Step 3: Cross multiply
    131,608.36x = 181,605.54 × 77,895.64
  4. Step 4: Simplify right side
    131,608.36x = 14,146,279,765.85
  5. Step 5: Solve for x
    x = 14,146,279,765.85/131,608.36
  6. Step 6: Final answer
    x = 107,487.70

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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.