Home / 207,887.12-286,884.19-112,393.81

Finding the Fourth Proportional to 207,887.12, 286,884.19 and 112,393.81

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Solution

The fourth proportional to 207,887.12, 286,884.19 and 112,393.81 is: 155,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,887.12 : 286,884.19 = 112,393.81 : x
  2. Step 2: Convert to fraction form
    207,887.12/286,884.19 = 112,393.81/x
  3. Step 3: Cross multiply
    207,887.12x = 286,884.19 × 112,393.81
  4. Step 4: Simplify right side
    207,887.12x = 32,244,007,325.85
  5. Step 5: Solve for x
    x = 32,244,007,325.85/207,887.12
  6. Step 6: Final answer
    x = 155,103.44

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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.