Home / 127,721.75-176,310.27-90,951.80

Finding the Fourth Proportional to 127,721.75, 176,310.27 and 90,951.80

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Solution

The fourth proportional to 127,721.75, 176,310.27 and 90,951.80 is: 125,552.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,721.75 : 176,310.27 = 90,951.80 : x
  2. Step 2: Convert to fraction form
    127,721.75/176,310.27 = 90,951.80/x
  3. Step 3: Cross multiply
    127,721.75x = 176,310.27 × 90,951.80
  4. Step 4: Simplify right side
    127,721.75x = 16,035,735,533.43
  5. Step 5: Solve for x
    x = 16,035,735,533.43/127,721.75
  6. Step 6: Final answer
    x = 125,552.12

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1.5x scale

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.