Home / 189,976.32-262,175.04-105,091.92

Finding the Fourth Proportional to 189,976.32, 262,175.04 and 105,091.92

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Solution

The fourth proportional to 189,976.32, 262,175.04 and 105,091.92 is: 145,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,976.32 : 262,175.04 = 105,091.92 : x
  2. Step 2: Convert to fraction form
    189,976.32/262,175.04 = 105,091.92/x
  3. Step 3: Cross multiply
    189,976.32x = 262,175.04 × 105,091.92
  4. Step 4: Simplify right side
    189,976.32x = 27,552,478,329.68
  5. Step 5: Solve for x
    x = 27,552,478,329.68/189,976.32
  6. Step 6: Final answer
    x = 145,031.12

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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.