Home / 189,406.42-261,435.50-111,953.82

Finding the Fourth Proportional to 189,406.42, 261,435.50 and 111,953.82

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Solution

The fourth proportional to 189,406.42, 261,435.50 and 111,953.82 is: 154,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,406.42 : 261,435.50 = 111,953.82 : x
  2. Step 2: Convert to fraction form
    189,406.42/261,435.50 = 111,953.82/x
  3. Step 3: Cross multiply
    189,406.42x = 261,435.50 × 111,953.82
  4. Step 4: Simplify right side
    189,406.42x = 29,268,702,908.61
  5. Step 5: Solve for x
    x = 29,268,702,908.61/189,406.42
  6. Step 6: Final answer
    x = 154,528.57

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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.