Home / 112,125.72-154,727.94-63,721.36

Finding the Fourth Proportional to 112,125.72, 154,727.94 and 63,721.36

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Solution

The fourth proportional to 112,125.72, 154,727.94 and 63,721.36 is: 87,932.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125.72 : 154,727.94 = 63,721.36 : x
  2. Step 2: Convert to fraction form
    112,125.72/154,727.94 = 63,721.36/x
  3. Step 3: Cross multiply
    112,125.72x = 154,727.94 × 63,721.36
  4. Step 4: Simplify right side
    112,125.72x = 9,859,474,766.80
  5. Step 5: Solve for x
    x = 9,859,474,766.80/112,125.72
  6. Step 6: Final answer
    x = 87,932.32

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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.