Home / 117,812.88-162,528.20-70,039.12

Finding the Fourth Proportional to 117,812.88, 162,528.20 and 70,039.12

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Solution

The fourth proportional to 117,812.88, 162,528.20 and 70,039.12 is: 96,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,812.88 : 162,528.20 = 70,039.12 : x
  2. Step 2: Convert to fraction form
    117,812.88/162,528.20 = 70,039.12/x
  3. Step 3: Cross multiply
    117,812.88x = 162,528.20 × 70,039.12
  4. Step 4: Simplify right side
    117,812.88x = 11,383,332,103.18
  5. Step 5: Solve for x
    x = 11,383,332,103.18/117,812.88
  6. Step 6: Final answer
    x = 96,622.14

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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.