Home / 189,658.49-261,718.21-109,087.37

Finding the Fourth Proportional to 189,658.49, 261,718.21 and 109,087.37

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Solution

The fourth proportional to 189,658.49, 261,718.21 and 109,087.37 is: 150,534.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,658.49 : 261,718.21 = 109,087.37 : x
  2. Step 2: Convert to fraction form
    189,658.49/261,718.21 = 109,087.37/x
  3. Step 3: Cross multiply
    189,658.49x = 261,718.21 × 109,087.37
  4. Step 4: Simplify right side
    189,658.49x = 28,550,151,210.01
  5. Step 5: Solve for x
    x = 28,550,151,210.01/189,658.49
  6. Step 6: Final answer
    x = 150,534.53

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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.