Home / 189,603.24-261,641.70-109,017.96

Finding the Fourth Proportional to 189,603.24, 261,641.70 and 109,017.96

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Solution

The fourth proportional to 189,603.24, 261,641.70 and 109,017.96 is: 150,438.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,603.24 : 261,641.70 = 109,017.96 : x
  2. Step 2: Convert to fraction form
    189,603.24/261,641.70 = 109,017.96/x
  3. Step 3: Cross multiply
    189,603.24x = 261,641.70 × 109,017.96
  4. Step 4: Simplify right side
    189,603.24x = 28,523,644,384.93
  5. Step 5: Solve for x
    x = 28,523,644,384.93/189,603.24
  6. Step 6: Final answer
    x = 150,438.59

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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.