Home / 185,639.04-256,182.40-100,756

Finding the Fourth Proportional to 185,639.04, 256,182.40 and 100,756

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Solution

The fourth proportional to 185,639.04, 256,182.40 and 100,756 is: 139,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,639.04 : 256,182.40 = 100,756 : x
  2. Step 2: Convert to fraction form
    185,639.04/256,182.40 = 100,756/x
  3. Step 3: Cross multiply
    185,639.04x = 256,182.40 × 100,756
  4. Step 4: Simplify right side
    185,639.04x = 25,811,913,894.40
  5. Step 5: Solve for x
    x = 25,811,913,894.40/185,639.04
  6. Step 6: Final answer
    x = 139,043.56

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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.