Home / 127,645.28-191,496.37-38,905.70

Finding the Fourth Proportional to 127,645.28, 191,496.37 and 38,905.70

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Solution

The fourth proportional to 127,645.28, 191,496.37 and 38,905.70 is: 58,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,645.28 : 191,496.37 = 38,905.70 : x
  2. Step 2: Convert to fraction form
    127,645.28/191,496.37 = 38,905.70/x
  3. Step 3: Cross multiply
    127,645.28x = 191,496.37 × 38,905.70
  4. Step 4: Simplify right side
    127,645.28x = 7,450,301,184.52
  5. Step 5: Solve for x
    x = 7,450,301,184.52/127,645.28
  6. Step 6: Final answer
    x = 58,367.23

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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.