Home / 148,292.78-204,641.50-80,309.20

Finding the Fourth Proportional to 148,292.78, 204,641.50 and 80,309.20

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Solution

The fourth proportional to 148,292.78, 204,641.50 and 80,309.20 is: 110,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,292.78 : 204,641.50 = 80,309.20 : x
  2. Step 2: Convert to fraction form
    148,292.78/204,641.50 = 80,309.20/x
  3. Step 3: Cross multiply
    148,292.78x = 204,641.50 × 80,309.20
  4. Step 4: Simplify right side
    148,292.78x = 16,434,594,511.09
  5. Step 5: Solve for x
    x = 16,434,594,511.09/148,292.78
  6. Step 6: Final answer
    x = 110,825.32

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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.