Home / 190,691.64-263,166.84-105,808.92

Finding the Fourth Proportional to 190,691.64, 263,166.84 and 105,808.92

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Solution

The fourth proportional to 190,691.64, 263,166.84 and 105,808.92 is: 146,023.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,691.64 : 263,166.84 = 105,808.92 : x
  2. Step 2: Convert to fraction form
    190,691.64/263,166.84 = 105,808.92/x
  3. Step 3: Cross multiply
    190,691.64x = 263,166.84 × 105,808.92
  4. Step 4: Simplify right side
    190,691.64x = 27,845,399,120.21
  5. Step 5: Solve for x
    x = 27,845,399,120.21/190,691.64
  6. Step 6: Final answer
    x = 146,023.18

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1.5x scale

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.