Home / 127,817.28-176,272.74-80,074.80

Finding the Fourth Proportional to 127,817.28, 176,272.74 and 80,074.80

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Solution

The fourth proportional to 127,817.28, 176,272.74 and 80,074.80 is: 110,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817.28 : 176,272.74 = 80,074.80 : x
  2. Step 2: Convert to fraction form
    127,817.28/176,272.74 = 80,074.80/x
  3. Step 3: Cross multiply
    127,817.28x = 176,272.74 × 80,074.80
  4. Step 4: Simplify right side
    127,817.28x = 14,115,004,400.95
  5. Step 5: Solve for x
    x = 14,115,004,400.95/127,817.28
  6. Step 6: Final answer
    x = 110,431.11

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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.