Home / 97,819.20-146,558.70-45,120.60

Finding the Fourth Proportional to 97,819.20, 146,558.70 and 45,120.60

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Solution

The fourth proportional to 97,819.20, 146,558.70 and 45,120.60 is: 67,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,819.20 : 146,558.70 = 45,120.60 : x
  2. Step 2: Convert to fraction form
    97,819.20/146,558.70 = 45,120.60/x
  3. Step 3: Cross multiply
    97,819.20x = 146,558.70 × 45,120.60
  4. Step 4: Simplify right side
    97,819.20x = 6,612,816,479.22
  5. Step 5: Solve for x
    x = 6,612,816,479.22/97,819.20
  6. Step 6: Final answer
    x = 67,602.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.