Home / 185,864.32-256,491.76-100,981.44

Finding the Fourth Proportional to 185,864.32, 256,491.76 and 100,981.44

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Solution

The fourth proportional to 185,864.32, 256,491.76 and 100,981.44 is: 139,353.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,864.32 : 256,491.76 = 100,981.44 : x
  2. Step 2: Convert to fraction form
    185,864.32/256,491.76 = 100,981.44/x
  3. Step 3: Cross multiply
    185,864.32x = 256,491.76 × 100,981.44
  4. Step 4: Simplify right side
    185,864.32x = 25,900,907,272.93
  5. Step 5: Solve for x
    x = 25,900,907,272.93/185,864.32
  6. Step 6: Final answer
    x = 139,353.84

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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.