Home / 136,294.80-188,165.07-91,122.30

Finding the Fourth Proportional to 136,294.80, 188,165.07 and 91,122.30

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Solution

The fourth proportional to 136,294.80, 188,165.07 and 91,122.30 is: 125,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,294.80 : 188,165.07 = 91,122.30 : x
  2. Step 2: Convert to fraction form
    136,294.80/188,165.07 = 91,122.30/x
  3. Step 3: Cross multiply
    136,294.80x = 188,165.07 × 91,122.30
  4. Step 4: Simplify right side
    136,294.80x = 17,146,033,958.06
  5. Step 5: Solve for x
    x = 17,146,033,958.06/136,294.80
  6. Step 6: Final answer
    x = 125,801.09

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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.