Home / 190,033.39-262,228.22-128,654.72

Finding the Fourth Proportional to 190,033.39, 262,228.22 and 128,654.72

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Solution

The fourth proportional to 190,033.39, 262,228.22 and 128,654.72 is: 177,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,033.39 : 262,228.22 = 128,654.72 : x
  2. Step 2: Convert to fraction form
    190,033.39/262,228.22 = 128,654.72/x
  3. Step 3: Cross multiply
    190,033.39x = 262,228.22 × 128,654.72
  4. Step 4: Simplify right side
    190,033.39x = 33,736,899,565.01
  5. Step 5: Solve for x
    x = 33,736,899,565.01/190,033.39
  6. Step 6: Final answer
    x = 177,531.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.