Home / 174,659.60-261,989.40-128,003.60

Finding the Fourth Proportional to 174,659.60, 261,989.40 and 128,003.60

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Solution

The fourth proportional to 174,659.60, 261,989.40 and 128,003.60 is: 192,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,659.60 : 261,989.40 = 128,003.60 : x
  2. Step 2: Convert to fraction form
    174,659.60/261,989.40 = 128,003.60/x
  3. Step 3: Cross multiply
    174,659.60x = 261,989.40 × 128,003.60
  4. Step 4: Simplify right side
    174,659.60x = 33,535,586,361.84
  5. Step 5: Solve for x
    x = 33,535,586,361.84/174,659.60
  6. Step 6: Final answer
    x = 192,005.40

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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.