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Finding the Fourth Proportional to 93,612.60, 140,246.10 and 87,391.80

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Solution

The fourth proportional to 93,612.60, 140,246.10 and 87,391.80 is: 130,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,612.60 : 140,246.10 = 87,391.80 : x
  2. Step 2: Convert to fraction form
    93,612.60/140,246.10 = 87,391.80/x
  3. Step 3: Cross multiply
    93,612.60x = 140,246.10 × 87,391.80
  4. Step 4: Simplify right side
    93,612.60x = 12,256,359,121.98
  5. Step 5: Solve for x
    x = 12,256,359,121.98/93,612.60
  6. Step 6: Final answer
    x = 130,926.38

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1.5x scale

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.