Home / 189,795.14-261,909.31-109,225.45

Finding the Fourth Proportional to 189,795.14, 261,909.31 and 109,225.45

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Solution

The fourth proportional to 189,795.14, 261,909.31 and 109,225.45 is: 150,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,795.14 : 261,909.31 = 109,225.45 : x
  2. Step 2: Convert to fraction form
    189,795.14/261,909.31 = 109,225.45/x
  3. Step 3: Cross multiply
    189,795.14x = 261,909.31 × 109,225.45
  4. Step 4: Simplify right side
    189,795.14x = 28,607,162,243.94
  5. Step 5: Solve for x
    x = 28,607,162,243.94/189,795.14
  6. Step 6: Final answer
    x = 150,726.53

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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.