Home / 127,725.96-191,618.73-38,979.30

Finding the Fourth Proportional to 127,725.96, 191,618.73 and 38,979.30

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Solution

The fourth proportional to 127,725.96, 191,618.73 and 38,979.30 is: 58,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,725.96 : 191,618.73 = 38,979.30 : x
  2. Step 2: Convert to fraction form
    127,725.96/191,618.73 = 38,979.30/x
  3. Step 3: Cross multiply
    127,725.96x = 191,618.73 × 38,979.30
  4. Step 4: Simplify right side
    127,725.96x = 7,469,163,962.29
  5. Step 5: Solve for x
    x = 7,469,163,962.29/127,725.96
  6. Step 6: Final answer
    x = 58,478.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.