Home / 148,431-204,835.26-80,449.08

Finding the Fourth Proportional to 148,431, 204,835.26 and 80,449.08

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Solution

The fourth proportional to 148,431, 204,835.26 and 80,449.08 is: 111,019.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,431 : 204,835.26 = 80,449.08 : x
  2. Step 2: Convert to fraction form
    148,431/204,835.26 = 80,449.08/x
  3. Step 3: Cross multiply
    148,431x = 204,835.26 × 80,449.08
  4. Step 4: Simplify right side
    148,431x = 16,478,808,218.56
  5. Step 5: Solve for x
    x = 16,478,808,218.56/148,431
  6. Step 6: Final answer
    x = 111,019.99

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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.