Home / 127,554.30-191,331.45-109,839.60

Finding the Fourth Proportional to 127,554.30, 191,331.45 and 109,839.60

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Solution

The fourth proportional to 127,554.30, 191,331.45 and 109,839.60 is: 164,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,554.30 : 191,331.45 = 109,839.60 : x
  2. Step 2: Convert to fraction form
    127,554.30/191,331.45 = 109,839.60/x
  3. Step 3: Cross multiply
    127,554.30x = 191,331.45 × 109,839.60
  4. Step 4: Simplify right side
    127,554.30x = 21,015,769,935.42
  5. Step 5: Solve for x
    x = 21,015,769,935.42/127,554.30
  6. Step 6: Final answer
    x = 164,759.40

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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.