Home / 127,378.64-175,617.24-81,975.44

Finding the Fourth Proportional to 127,378.64, 175,617.24 and 81,975.44

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Solution

The fourth proportional to 127,378.64, 175,617.24 and 81,975.44 is: 113,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,378.64 : 175,617.24 = 81,975.44 : x
  2. Step 2: Convert to fraction form
    127,378.64/175,617.24 = 81,975.44/x
  3. Step 3: Cross multiply
    127,378.64x = 175,617.24 × 81,975.44
  4. Step 4: Simplify right side
    127,378.64x = 14,396,300,520.59
  5. Step 5: Solve for x
    x = 14,396,300,520.59/127,378.64
  6. Step 6: Final answer
    x = 113,019.74

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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.