Home / 136,050.80-203,736.76-85,979.84

Finding the Fourth Proportional to 136,050.80, 203,736.76 and 85,979.84

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Solution

The fourth proportional to 136,050.80, 203,736.76 and 85,979.84 is: 128,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,050.80 : 203,736.76 = 85,979.84 : x
  2. Step 2: Convert to fraction form
    136,050.80/203,736.76 = 85,979.84/x
  3. Step 3: Cross multiply
    136,050.80x = 203,736.76 × 85,979.84
  4. Step 4: Simplify right side
    136,050.80x = 17,517,254,026.92
  5. Step 5: Solve for x
    x = 17,517,254,026.92/136,050.80
  6. Step 6: Final answer
    x = 128,755.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.