Home / 189,808.18-261,946.78-109,233.95

Finding the Fourth Proportional to 189,808.18, 261,946.78 and 109,233.95

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Solution

The fourth proportional to 189,808.18, 261,946.78 and 109,233.95 is: 150,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,808.18 : 261,946.78 = 109,233.95 : x
  2. Step 2: Convert to fraction form
    189,808.18/261,946.78 = 109,233.95/x
  3. Step 3: Cross multiply
    189,808.18x = 261,946.78 × 109,233.95
  4. Step 4: Simplify right side
    189,808.18x = 28,613,479,886.36
  5. Step 5: Solve for x
    x = 28,613,479,886.36/189,808.18
  6. Step 6: Final answer
    x = 150,749.46

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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.