Home / 199,252.72-274,813.20-127,639.40

Finding the Fourth Proportional to 199,252.72, 274,813.20 and 127,639.40

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Solution

The fourth proportional to 199,252.72, 274,813.20 and 127,639.40 is: 176,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,252.72 : 274,813.20 = 127,639.40 : x
  2. Step 2: Convert to fraction form
    199,252.72/274,813.20 = 127,639.40/x
  3. Step 3: Cross multiply
    199,252.72x = 274,813.20 × 127,639.40
  4. Step 4: Simplify right side
    199,252.72x = 35,076,991,960.08
  5. Step 5: Solve for x
    x = 35,076,991,960.08/199,252.72
  6. Step 6: Final answer
    x = 176,042.73

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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.