Home / 185,639.82-256,139.04-105,067.35

Finding the Fourth Proportional to 185,639.82, 256,139.04 and 105,067.35

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Solution

The fourth proportional to 185,639.82, 256,139.04 and 105,067.35 is: 144,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,639.82 : 256,139.04 = 105,067.35 : x
  2. Step 2: Convert to fraction form
    185,639.82/256,139.04 = 105,067.35/x
  3. Step 3: Cross multiply
    185,639.82x = 256,139.04 × 105,067.35
  4. Step 4: Simplify right side
    185,639.82x = 26,911,850,164.34
  5. Step 5: Solve for x
    x = 26,911,850,164.34/185,639.82
  6. Step 6: Final answer
    x = 144,968.09

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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.