Home / 185,631.84-256,165.44-100,747.20

Finding the Fourth Proportional to 185,631.84, 256,165.44 and 100,747.20

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Solution

The fourth proportional to 185,631.84, 256,165.44 and 100,747.20 is: 139,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,631.84 : 256,165.44 = 100,747.20 : x
  2. Step 2: Convert to fraction form
    185,631.84/256,165.44 = 100,747.20/x
  3. Step 3: Cross multiply
    185,631.84x = 256,165.44 × 100,747.20
  4. Step 4: Simplify right side
    185,631.84x = 25,807,950,816.77
  5. Step 5: Solve for x
    x = 25,807,950,816.77/185,631.84
  6. Step 6: Final answer
    x = 139,027.61

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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.