Home / 131,355.08-181,199.97-80,392.51

Finding the Fourth Proportional to 131,355.08, 181,199.97 and 80,392.51

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Solution

The fourth proportional to 131,355.08, 181,199.97 and 80,392.51 is: 110,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,355.08 : 181,199.97 = 80,392.51 : x
  2. Step 2: Convert to fraction form
    131,355.08/181,199.97 = 80,392.51/x
  3. Step 3: Cross multiply
    131,355.08x = 181,199.97 × 80,392.51
  4. Step 4: Simplify right side
    131,355.08x = 14,567,120,626.72
  5. Step 5: Solve for x
    x = 14,567,120,626.72/131,355.08
  6. Step 6: Final answer
    x = 110,898.80

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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.