Home / 148,269.86-204,614.11-80,288.38

Finding the Fourth Proportional to 148,269.86, 204,614.11 and 80,288.38

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Solution

The fourth proportional to 148,269.86, 204,614.11 and 80,288.38 is: 110,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,269.86 : 204,614.11 = 80,288.38 : x
  2. Step 2: Convert to fraction form
    148,269.86/204,614.11 = 80,288.38/x
  3. Step 3: Cross multiply
    148,269.86x = 204,614.11 × 80,288.38
  4. Step 4: Simplify right side
    148,269.86x = 16,428,135,417.04
  5. Step 5: Solve for x
    x = 16,428,135,417.04/148,269.86
  6. Step 6: Final answer
    x = 110,798.89

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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.