Home / 148,800.16-205,346.92-80,817.12

Finding the Fourth Proportional to 148,800.16, 205,346.92 and 80,817.12

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Solution

The fourth proportional to 148,800.16, 205,346.92 and 80,817.12 is: 111,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,800.16 : 205,346.92 = 80,817.12 : x
  2. Step 2: Convert to fraction form
    148,800.16/205,346.92 = 80,817.12/x
  3. Step 3: Cross multiply
    148,800.16x = 205,346.92 × 80,817.12
  4. Step 4: Simplify right side
    148,800.16x = 16,595,546,675.27
  5. Step 5: Solve for x
    x = 16,595,546,675.27/148,800.16
  6. Step 6: Final answer
    x = 111,529.09

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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.