Home / 100,230.67-138,318.32-59,944.43

Finding the Fourth Proportional to 100,230.67, 138,318.32 and 59,944.43

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Solution

The fourth proportional to 100,230.67, 138,318.32 and 59,944.43 is: 82,723.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,230.67 : 138,318.32 = 59,944.43 : x
  2. Step 2: Convert to fraction form
    100,230.67/138,318.32 = 59,944.43/x
  3. Step 3: Cross multiply
    100,230.67x = 138,318.32 × 59,944.43
  4. Step 4: Simplify right side
    100,230.67x = 8,291,413,493.57
  5. Step 5: Solve for x
    x = 8,291,413,493.57/100,230.67
  6. Step 6: Final answer
    x = 82,723.31

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1.5x scale

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.