Home / 189,463.09-261,472.14-108,885.79

Finding the Fourth Proportional to 189,463.09, 261,472.14 and 108,885.79

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Solution

The fourth proportional to 189,463.09, 261,472.14 and 108,885.79 is: 150,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,463.09 : 261,472.14 = 108,885.79 : x
  2. Step 2: Convert to fraction form
    189,463.09/261,472.14 = 108,885.79/x
  3. Step 3: Cross multiply
    189,463.09x = 261,472.14 × 108,885.79
  4. Step 4: Simplify right side
    189,463.09x = 28,470,600,526.89
  5. Step 5: Solve for x
    x = 28,470,600,526.89/189,463.09
  6. Step 6: Final answer
    x = 150,269.90

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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.