Home / 131,141.44-181,003.80-83,385.46

Finding the Fourth Proportional to 131,141.44, 181,003.80 and 83,385.46

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Solution

The fourth proportional to 131,141.44, 181,003.80 and 83,385.46 is: 115,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,141.44 : 181,003.80 = 83,385.46 : x
  2. Step 2: Convert to fraction form
    131,141.44/181,003.80 = 83,385.46/x
  3. Step 3: Cross multiply
    131,141.44x = 181,003.80 × 83,385.46
  4. Step 4: Simplify right side
    131,141.44x = 15,093,085,124.75
  5. Step 5: Solve for x
    x = 15,093,085,124.75/131,141.44
  6. Step 6: Final answer
    x = 115,090.13

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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.