Home / 127,120.77-190,671.89-52,220.57

Finding the Fourth Proportional to 127,120.77, 190,671.89 and 52,220.57

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Solution

The fourth proportional to 127,120.77, 190,671.89 and 52,220.57 is: 78,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,120.77 : 190,671.89 = 52,220.57 : x
  2. Step 2: Convert to fraction form
    127,120.77/190,671.89 = 52,220.57/x
  3. Step 3: Cross multiply
    127,120.77x = 190,671.89 × 52,220.57
  4. Step 4: Simplify right side
    127,120.77x = 9,956,994,778.78
  5. Step 5: Solve for x
    x = 9,956,994,778.78/127,120.77
  6. Step 6: Final answer
    x = 78,327.05

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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.