Home / 127,738.60-191,636.70-38,996.20

Finding the Fourth Proportional to 127,738.60, 191,636.70 and 38,996.20

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Solution

The fourth proportional to 127,738.60, 191,636.70 and 38,996.20 is: 58,503.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,738.60 : 191,636.70 = 38,996.20 : x
  2. Step 2: Convert to fraction form
    127,738.60/191,636.70 = 38,996.20/x
  3. Step 3: Cross multiply
    127,738.60x = 191,636.70 × 38,996.20
  4. Step 4: Simplify right side
    127,738.60x = 7,473,103,080.54
  5. Step 5: Solve for x
    x = 7,473,103,080.54/127,738.60
  6. Step 6: Final answer
    x = 58,503.09

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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.