Home / 185,867.60-256,487.60-100,984.56

Finding the Fourth Proportional to 185,867.60, 256,487.60 and 100,984.56

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Solution

The fourth proportional to 185,867.60, 256,487.60 and 100,984.56 is: 139,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,867.60 : 256,487.60 = 100,984.56 : x
  2. Step 2: Convert to fraction form
    185,867.60/256,487.60 = 100,984.56/x
  3. Step 3: Cross multiply
    185,867.60x = 256,487.60 × 100,984.56
  4. Step 4: Simplify right side
    185,867.60x = 25,901,287,431.46
  5. Step 5: Solve for x
    x = 25,901,287,431.46/185,867.60
  6. Step 6: Final answer
    x = 139,353.43

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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.