Home / 185,911.25-256,557.78-105,344.24

Finding the Fourth Proportional to 185,911.25, 256,557.78 and 105,344.24

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Solution

The fourth proportional to 185,911.25, 256,557.78 and 105,344.24 is: 145,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,911.25 : 256,557.78 = 105,344.24 : x
  2. Step 2: Convert to fraction form
    185,911.25/256,557.78 = 105,344.24/x
  3. Step 3: Cross multiply
    185,911.25x = 256,557.78 × 105,344.24
  4. Step 4: Simplify right side
    185,911.25x = 27,026,883,067.40
  5. Step 5: Solve for x
    x = 27,026,883,067.40/185,911.25
  6. Step 6: Final answer
    x = 145,375.19

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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.