Home / 131,142.94-181,005.87-83,386.96

Finding the Fourth Proportional to 131,142.94, 181,005.87 and 83,386.96

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Solution

The fourth proportional to 131,142.94, 181,005.87 and 83,386.96 is: 115,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,142.94 : 181,005.87 = 83,386.96 : x
  2. Step 2: Convert to fraction form
    131,142.94/181,005.87 = 83,386.96/x
  3. Step 3: Cross multiply
    131,142.94x = 181,005.87 × 83,386.96
  4. Step 4: Simplify right side
    131,142.94x = 15,093,529,241.46
  5. Step 5: Solve for x
    x = 15,093,529,241.46/131,142.94
  6. Step 6: Final answer
    x = 115,092.20

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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.