Home / 112,182.80-168,047.40-69,933.20

Finding the Fourth Proportional to 112,182.80, 168,047.40 and 69,933.20

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Solution

The fourth proportional to 112,182.80, 168,047.40 and 69,933.20 is: 104,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,182.80 : 168,047.40 = 69,933.20 : x
  2. Step 2: Convert to fraction form
    112,182.80/168,047.40 = 69,933.20/x
  3. Step 3: Cross multiply
    112,182.80x = 168,047.40 × 69,933.20
  4. Step 4: Simplify right side
    112,182.80x = 11,752,092,433.68
  5. Step 5: Solve for x
    x = 11,752,092,433.68/112,182.80
  6. Step 6: Final answer
    x = 104,758.42

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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.