Home / 131,596.29-181,591.83-77,871.96

Finding the Fourth Proportional to 131,596.29, 181,591.83 and 77,871.96

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Solution

The fourth proportional to 131,596.29, 181,591.83 and 77,871.96 is: 107,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,596.29 : 181,591.83 = 77,871.96 : x
  2. Step 2: Convert to fraction form
    131,596.29/181,591.83 = 77,871.96/x
  3. Step 3: Cross multiply
    131,596.29x = 181,591.83 × 77,871.96
  4. Step 4: Simplify right side
    131,596.29x = 14,140,911,722.09
  5. Step 5: Solve for x
    x = 14,140,911,722.09/131,596.29
  6. Step 6: Final answer
    x = 107,456.77

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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.