Home / 143,062.20-214,593.30-90,703.80

Finding the Fourth Proportional to 143,062.20, 214,593.30 and 90,703.80

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Solution

The fourth proportional to 143,062.20, 214,593.30 and 90,703.80 is: 136,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,062.20 : 214,593.30 = 90,703.80 : x
  2. Step 2: Convert to fraction form
    143,062.20/214,593.30 = 90,703.80/x
  3. Step 3: Cross multiply
    143,062.20x = 214,593.30 × 90,703.80
  4. Step 4: Simplify right side
    143,062.20x = 19,464,427,764.54
  5. Step 5: Solve for x
    x = 19,464,427,764.54/143,062.20
  6. Step 6: Final answer
    x = 136,055.70

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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.