Home / 133,236.42-183,659.13-90,721.86

Finding the Fourth Proportional to 133,236.42, 183,659.13 and 90,721.86

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Solution

The fourth proportional to 133,236.42, 183,659.13 and 90,721.86 is: 125,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,236.42 : 183,659.13 = 90,721.86 : x
  2. Step 2: Convert to fraction form
    133,236.42/183,659.13 = 90,721.86/x
  3. Step 3: Cross multiply
    133,236.42x = 183,659.13 × 90,721.86
  4. Step 4: Simplify right side
    133,236.42x = 16,661,897,879.58
  5. Step 5: Solve for x
    x = 16,661,897,879.58/133,236.42
  6. Step 6: Final answer
    x = 125,055.13

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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.