Home / 148,200.18-204,516-80,217.12

Finding the Fourth Proportional to 148,200.18, 204,516 and 80,217.12

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Solution

The fourth proportional to 148,200.18, 204,516 and 80,217.12 is: 110,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,200.18 : 204,516 = 80,217.12 : x
  2. Step 2: Convert to fraction form
    148,200.18/204,516 = 80,217.12/x
  3. Step 3: Cross multiply
    148,200.18x = 204,516 × 80,217.12
  4. Step 4: Simplify right side
    148,200.18x = 16,405,684,513.92
  5. Step 5: Solve for x
    x = 16,405,684,513.92/148,200.18
  6. Step 6: Final answer
    x = 110,699.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.