Home / 189,464.16-261,345.78-112,932.26

Finding the Fourth Proportional to 189,464.16, 261,345.78 and 112,932.26

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Solution

The fourth proportional to 189,464.16, 261,345.78 and 112,932.26 is: 155,778.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,464.16 : 261,345.78 = 112,932.26 : x
  2. Step 2: Convert to fraction form
    189,464.16/261,345.78 = 112,932.26/x
  3. Step 3: Cross multiply
    189,464.16x = 261,345.78 × 112,932.26
  4. Step 4: Simplify right side
    189,464.16x = 29,514,369,576.86
  5. Step 5: Solve for x
    x = 29,514,369,576.86/189,464.16
  6. Step 6: Final answer
    x = 155,778.11

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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.