Home / 189,709.55-261,814.11-108,041.27

Finding the Fourth Proportional to 189,709.55, 261,814.11 and 108,041.27

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Solution

The fourth proportional to 189,709.55, 261,814.11 and 108,041.27 is: 149,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,709.55 : 261,814.11 = 108,041.27 : x
  2. Step 2: Convert to fraction form
    189,709.55/261,814.11 = 108,041.27/x
  3. Step 3: Cross multiply
    189,709.55x = 261,814.11 × 108,041.27
  4. Step 4: Simplify right side
    189,709.55x = 28,286,730,424.89
  5. Step 5: Solve for x
    x = 28,286,730,424.89/189,709.55
  6. Step 6: Final answer
    x = 149,105.46

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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.