Home / 136,466.45-188,401.84-91,221.06

Finding the Fourth Proportional to 136,466.45, 188,401.84 and 91,221.06

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Solution

The fourth proportional to 136,466.45, 188,401.84 and 91,221.06 is: 125,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,466.45 : 188,401.84 = 91,221.06 : x
  2. Step 2: Convert to fraction form
    136,466.45/188,401.84 = 91,221.06/x
  3. Step 3: Cross multiply
    136,466.45x = 188,401.84 × 91,221.06
  4. Step 4: Simplify right side
    136,466.45x = 17,186,215,550.75
  5. Step 5: Solve for x
    x = 17,186,215,550.75/136,466.45
  6. Step 6: Final answer
    x = 125,937.30

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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.