Home / 189,760.11-284,686.88-133,709.67

Finding the Fourth Proportional to 189,760.11, 284,686.88 and 133,709.67

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Solution

The fourth proportional to 189,760.11, 284,686.88 and 133,709.67 is: 200,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,760.11 : 284,686.88 = 133,709.67 : x
  2. Step 2: Convert to fraction form
    189,760.11/284,686.88 = 133,709.67/x
  3. Step 3: Cross multiply
    189,760.11x = 284,686.88 × 133,709.67
  4. Step 4: Simplify right side
    189,760.11x = 38,065,388,109.58
  5. Step 5: Solve for x
    x = 38,065,388,109.58/189,760.11
  6. Step 6: Final answer
    x = 200,597.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.