Home / 112,270.45-154,933.12-61,969.33

Finding the Fourth Proportional to 112,270.45, 154,933.12 and 61,969.33

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Solution

The fourth proportional to 112,270.45, 154,933.12 and 61,969.33 is: 85,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,270.45 : 154,933.12 = 61,969.33 : x
  2. Step 2: Convert to fraction form
    112,270.45/154,933.12 = 61,969.33/x
  3. Step 3: Cross multiply
    112,270.45x = 154,933.12 × 61,969.33
  4. Step 4: Simplify right side
    112,270.45x = 9,601,101,641.21
  5. Step 5: Solve for x
    x = 9,601,101,641.21/112,270.45
  6. Step 6: Final answer
    x = 85,517.62

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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.