Home / 148,112.72-204,394.70-80,129.48

Finding the Fourth Proportional to 148,112.72, 204,394.70 and 80,129.48

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Solution

The fourth proportional to 148,112.72, 204,394.70 and 80,129.48 is: 110,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,112.72 : 204,394.70 = 80,129.48 : x
  2. Step 2: Convert to fraction form
    148,112.72/204,394.70 = 80,129.48/x
  3. Step 3: Cross multiply
    148,112.72x = 204,394.70 × 80,129.48
  4. Step 4: Simplify right side
    148,112.72x = 16,378,041,025.76
  5. Step 5: Solve for x
    x = 16,378,041,025.76/148,112.72
  6. Step 6: Final answer
    x = 110,578.22

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1.5x scale

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.