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Finding the Fourth Proportional to 93,615.60, 140,250.60 and 87,394.80

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Solution

The fourth proportional to 93,615.60, 140,250.60 and 87,394.80 is: 130,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,615.60 : 140,250.60 = 87,394.80 : x
  2. Step 2: Convert to fraction form
    93,615.60/140,250.60 = 87,394.80/x
  3. Step 3: Cross multiply
    93,615.60x = 140,250.60 × 87,394.80
  4. Step 4: Simplify right side
    93,615.60x = 12,257,173,136.88
  5. Step 5: Solve for x
    x = 12,257,173,136.88/93,615.60
  6. Step 6: Final answer
    x = 130,930.88

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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.