Home / 190,746.32-263,217.48-105,859.28

Finding the Fourth Proportional to 190,746.32, 263,217.48 and 105,859.28

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Solution

The fourth proportional to 190,746.32, 263,217.48 and 105,859.28 is: 146,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,746.32 : 263,217.48 = 105,859.28 : x
  2. Step 2: Convert to fraction form
    190,746.32/263,217.48 = 105,859.28/x
  3. Step 3: Cross multiply
    190,746.32x = 263,217.48 × 105,859.28
  4. Step 4: Simplify right side
    190,746.32x = 27,864,012,916.21
  5. Step 5: Solve for x
    x = 27,864,012,916.21/190,746.32
  6. Step 6: Final answer
    x = 146,078.90

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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.