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Finding the Fourth Proportional to 99,505.57, 149,258 and 40,341.10

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Solution

The fourth proportional to 99,505.57, 149,258 and 40,341.10 is: 60,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,505.57 : 149,258 = 40,341.10 : x
  2. Step 2: Convert to fraction form
    99,505.57/149,258 = 40,341.10/x
  3. Step 3: Cross multiply
    99,505.57x = 149,258 × 40,341.10
  4. Step 4: Simplify right side
    99,505.57x = 6,021,231,903.80
  5. Step 5: Solve for x
    x = 6,021,231,903.80/99,505.57
  6. Step 6: Final answer
    x = 60,511.51

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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.