Home / 127,376.20-175,315.14-112,169.26

Finding the Fourth Proportional to 127,376.20, 175,315.14 and 112,169.26

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Solution

The fourth proportional to 127,376.20, 175,315.14 and 112,169.26 is: 154,384.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,376.20 : 175,315.14 = 112,169.26 : x
  2. Step 2: Convert to fraction form
    127,376.20/175,315.14 = 112,169.26/x
  3. Step 3: Cross multiply
    127,376.20x = 175,315.14 × 112,169.26
  4. Step 4: Simplify right side
    127,376.20x = 19,664,969,520.60
  5. Step 5: Solve for x
    x = 19,664,969,520.60/127,376.20
  6. Step 6: Final answer
    x = 154,384.96

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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.