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Finding the Fourth Proportional to 185,416.60, 255,876.60 and 100,533.88

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Solution

The fourth proportional to 185,416.60, 255,876.60 and 100,533.88 is: 138,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,416.60 : 255,876.60 = 100,533.88 : x
  2. Step 2: Convert to fraction form
    185,416.60/255,876.60 = 100,533.88/x
  3. Step 3: Cross multiply
    185,416.60x = 255,876.60 × 100,533.88
  4. Step 4: Simplify right side
    185,416.60x = 25,724,267,399.21
  5. Step 5: Solve for x
    x = 25,724,267,399.21/185,416.60
  6. Step 6: Final answer
    x = 138,737.67

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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.