Home / 136,997.28-188,331.12-117,806.40

Finding the Fourth Proportional to 136,997.28, 188,331.12 and 117,806.40

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Solution

The fourth proportional to 136,997.28, 188,331.12 and 117,806.40 is: 161,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,997.28 : 188,331.12 = 117,806.40 : x
  2. Step 2: Convert to fraction form
    136,997.28/188,331.12 = 117,806.40/x
  3. Step 3: Cross multiply
    136,997.28x = 188,331.12 × 117,806.40
  4. Step 4: Simplify right side
    136,997.28x = 22,186,611,255.17
  5. Step 5: Solve for x
    x = 22,186,611,255.17/136,997.28
  6. Step 6: Final answer
    x = 161,949.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.