Home / 112,974.36-169,509.39-56,784.87

Finding the Fourth Proportional to 112,974.36, 169,509.39 and 56,784.87

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Solution

The fourth proportional to 112,974.36, 169,509.39 and 56,784.87 is: 85,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,974.36 : 169,509.39 = 56,784.87 : x
  2. Step 2: Convert to fraction form
    112,974.36/169,509.39 = 56,784.87/x
  3. Step 3: Cross multiply
    112,974.36x = 169,509.39 × 56,784.87
  4. Step 4: Simplify right side
    112,974.36x = 9,625,568,674.93
  5. Step 5: Solve for x
    x = 9,625,568,674.93/112,974.36
  6. Step 6: Final answer
    x = 85,201.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.