Home / 112,078.91-154,667.89-61,091.64

Finding the Fourth Proportional to 112,078.91, 154,667.89 and 61,091.64

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Solution

The fourth proportional to 112,078.91, 154,667.89 and 61,091.64 is: 84,305.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,078.91 : 154,667.89 = 61,091.64 : x
  2. Step 2: Convert to fraction form
    112,078.91/154,667.89 = 61,091.64/x
  3. Step 3: Cross multiply
    112,078.91x = 154,667.89 × 61,091.64
  4. Step 4: Simplify right side
    112,078.91x = 9,448,913,976.64
  5. Step 5: Solve for x
    x = 9,448,913,976.64/112,078.91
  6. Step 6: Final answer
    x = 84,305.91

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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.