Home / 189,286.74-261,214.47-104,401.98

Finding the Fourth Proportional to 189,286.74, 261,214.47 and 104,401.98

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Solution

The fourth proportional to 189,286.74, 261,214.47 and 104,401.98 is: 144,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,286.74 : 261,214.47 = 104,401.98 : x
  2. Step 2: Convert to fraction form
    189,286.74/261,214.47 = 104,401.98/x
  3. Step 3: Cross multiply
    189,286.74x = 261,214.47 × 104,401.98
  4. Step 4: Simplify right side
    189,286.74x = 27,271,307,872.65
  5. Step 5: Solve for x
    x = 27,271,307,872.65/189,286.74
  6. Step 6: Final answer
    x = 144,074.05

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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.