Home / 112,216.25-154,861.67-61,918.49

Finding the Fourth Proportional to 112,216.25, 154,861.67 and 61,918.49

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Solution

The fourth proportional to 112,216.25, 154,861.67 and 61,918.49 is: 85,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,216.25 : 154,861.67 = 61,918.49 : x
  2. Step 2: Convert to fraction form
    112,216.25/154,861.67 = 61,918.49/x
  3. Step 3: Cross multiply
    112,216.25x = 154,861.67 × 61,918.49
  4. Step 4: Simplify right side
    112,216.25x = 9,588,800,765.28
  5. Step 5: Solve for x
    x = 9,588,800,765.28/112,216.25
  6. Step 6: Final answer
    x = 85,449.31

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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.