Home / 127,281.20-190,921.80-97,847.60

Finding the Fourth Proportional to 127,281.20, 190,921.80 and 97,847.60

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Solution

The fourth proportional to 127,281.20, 190,921.80 and 97,847.60 is: 146,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.20 : 190,921.80 = 97,847.60 : x
  2. Step 2: Convert to fraction form
    127,281.20/190,921.80 = 97,847.60/x
  3. Step 3: Cross multiply
    127,281.20x = 190,921.80 × 97,847.60
  4. Step 4: Simplify right side
    127,281.20x = 18,681,239,917.68
  5. Step 5: Solve for x
    x = 18,681,239,917.68/127,281.20
  6. Step 6: Final answer
    x = 146,771.40

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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.