Home / 111,115.56-153,217.26-70,784.04

Finding the Fourth Proportional to 111,115.56, 153,217.26 and 70,784.04

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Solution

The fourth proportional to 111,115.56, 153,217.26 and 70,784.04 is: 97,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.56 : 153,217.26 = 70,784.04 : x
  2. Step 2: Convert to fraction form
    111,115.56/153,217.26 = 70,784.04/x
  3. Step 3: Cross multiply
    111,115.56x = 153,217.26 × 70,784.04
  4. Step 4: Simplify right side
    111,115.56x = 10,845,336,660.53
  5. Step 5: Solve for x
    x = 10,845,336,660.53/111,115.56
  6. Step 6: Final answer
    x = 97,604.12

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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.