Home / 198,728.72-274,244.28-112,703.92

Finding the Fourth Proportional to 198,728.72, 274,244.28 and 112,703.92

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Solution

The fourth proportional to 198,728.72, 274,244.28 and 112,703.92 is: 155,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,728.72 : 274,244.28 = 112,703.92 : x
  2. Step 2: Convert to fraction form
    198,728.72/274,244.28 = 112,703.92/x
  3. Step 3: Cross multiply
    198,728.72x = 274,244.28 × 112,703.92
  4. Step 4: Simplify right side
    198,728.72x = 30,908,405,393.58
  5. Step 5: Solve for x
    x = 30,908,405,393.58/198,728.72
  6. Step 6: Final answer
    x = 155,530.64

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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.