Home / 127,947.60-191,921.40-122,763.60

Finding the Fourth Proportional to 127,947.60, 191,921.40 and 122,763.60

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Solution

The fourth proportional to 127,947.60, 191,921.40 and 122,763.60 is: 184,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,947.60 : 191,921.40 = 122,763.60 : x
  2. Step 2: Convert to fraction form
    127,947.60/191,921.40 = 122,763.60/x
  3. Step 3: Cross multiply
    127,947.60x = 191,921.40 × 122,763.60
  4. Step 4: Simplify right side
    127,947.60x = 23,560,961,981.04
  5. Step 5: Solve for x
    x = 23,560,961,981.04/127,947.60
  6. Step 6: Final answer
    x = 184,145.40

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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.