Home / 131,812.94-181,905.18-80,853.77

Finding the Fourth Proportional to 131,812.94, 181,905.18 and 80,853.77

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Solution

The fourth proportional to 131,812.94, 181,905.18 and 80,853.77 is: 111,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,812.94 : 181,905.18 = 80,853.77 : x
  2. Step 2: Convert to fraction form
    131,812.94/181,905.18 = 80,853.77/x
  3. Step 3: Cross multiply
    131,812.94x = 181,905.18 × 80,853.77
  4. Step 4: Simplify right side
    131,812.94x = 14,707,720,174.10
  5. Step 5: Solve for x
    x = 14,707,720,174.10/131,812.94
  6. Step 6: Final answer
    x = 111,580.25

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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.