Home / 131,183.96-181,028.50-77,486.36

Finding the Fourth Proportional to 131,183.96, 181,028.50 and 77,486.36

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Solution

The fourth proportional to 131,183.96, 181,028.50 and 77,486.36 is: 106,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,183.96 : 181,028.50 = 77,486.36 : x
  2. Step 2: Convert to fraction form
    131,183.96/181,028.50 = 77,486.36/x
  3. Step 3: Cross multiply
    131,183.96x = 181,028.50 × 77,486.36
  4. Step 4: Simplify right side
    131,183.96x = 14,027,239,521.26
  5. Step 5: Solve for x
    x = 14,027,239,521.26/131,183.96
  6. Step 6: Final answer
    x = 106,928.01

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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.