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Finding the Fourth Proportional to 93,487.70, 140,231.55 and 89,858.90

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Solution

The fourth proportional to 93,487.70, 140,231.55 and 89,858.90 is: 134,788.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,487.70 : 140,231.55 = 89,858.90 : x
  2. Step 2: Convert to fraction form
    93,487.70/140,231.55 = 89,858.90/x
  3. Step 3: Cross multiply
    93,487.70x = 140,231.55 × 89,858.90
  4. Step 4: Simplify right side
    93,487.70x = 12,601,052,828.30
  5. Step 5: Solve for x
    x = 12,601,052,828.30/93,487.70
  6. Step 6: Final answer
    x = 134,788.35

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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.