Home / 189,902.79-262,131.77-109,362.40

Finding the Fourth Proportional to 189,902.79, 262,131.77 and 109,362.40

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Solution

The fourth proportional to 189,902.79, 262,131.77 and 109,362.40 is: 150,958.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,902.79 : 262,131.77 = 109,362.40 : x
  2. Step 2: Convert to fraction form
    189,902.79/262,131.77 = 109,362.40/x
  3. Step 3: Cross multiply
    189,902.79x = 262,131.77 × 109,362.40
  4. Step 4: Simplify right side
    189,902.79x = 28,667,359,101.52
  5. Step 5: Solve for x
    x = 28,667,359,101.52/189,902.79
  6. Step 6: Final answer
    x = 150,958.07

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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.