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Finding the Fourth Proportional to 148,800.34, 205,345.94 and 80,817.94

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Solution

The fourth proportional to 148,800.34, 205,345.94 and 80,817.94 is: 111,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,800.34 : 205,345.94 = 80,817.94 : x
  2. Step 2: Convert to fraction form
    148,800.34/205,345.94 = 80,817.94/x
  3. Step 3: Cross multiply
    148,800.34x = 205,345.94 × 80,817.94
  4. Step 4: Simplify right side
    148,800.34x = 16,595,635,858.16
  5. Step 5: Solve for x
    x = 16,595,635,858.16/148,800.34
  6. Step 6: Final answer
    x = 111,529.56

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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.