Home / 141,928.42-212,651.64-85,650.27

Finding the Fourth Proportional to 141,928.42, 212,651.64 and 85,650.27

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Solution

The fourth proportional to 141,928.42, 212,651.64 and 85,650.27 is: 128,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,928.42 : 212,651.64 = 85,650.27 : x
  2. Step 2: Convert to fraction form
    141,928.42/212,651.64 = 85,650.27/x
  3. Step 3: Cross multiply
    141,928.42x = 212,651.64 × 85,650.27
  4. Step 4: Simplify right side
    141,928.42x = 18,213,670,381.94
  5. Step 5: Solve for x
    x = 18,213,670,381.94/141,928.42
  6. Step 6: Final answer
    x = 128,329.97

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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.