Home / 189,942.16-262,133.22-109,390.90

Finding the Fourth Proportional to 189,942.16, 262,133.22 and 109,390.90

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Solution

The fourth proportional to 189,942.16, 262,133.22 and 109,390.90 is: 150,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,942.16 : 262,133.22 = 109,390.90 : x
  2. Step 2: Convert to fraction form
    189,942.16/262,133.22 = 109,390.90/x
  3. Step 3: Cross multiply
    189,942.16x = 262,133.22 × 109,390.90
  4. Step 4: Simplify right side
    189,942.16x = 28,674,988,855.70
  5. Step 5: Solve for x
    x = 28,674,988,855.70/189,942.16
  6. Step 6: Final answer
    x = 150,966.95

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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.