Home / 127,230.60-190,845.90-121,981.80

Finding the Fourth Proportional to 127,230.60, 190,845.90 and 121,981.80

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Solution

The fourth proportional to 127,230.60, 190,845.90 and 121,981.80 is: 182,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,230.60 : 190,845.90 = 121,981.80 : x
  2. Step 2: Convert to fraction form
    127,230.60/190,845.90 = 121,981.80/x
  3. Step 3: Cross multiply
    127,230.60x = 190,845.90 × 121,981.80
  4. Step 4: Simplify right side
    127,230.60x = 23,279,726,404.62
  5. Step 5: Solve for x
    x = 23,279,726,404.62/127,230.60
  6. Step 6: Final answer
    x = 182,972.70

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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.