Home / 129,938.26-194,907.40-31,442.26

Finding the Fourth Proportional to 129,938.26, 194,907.40 and 31,442.26

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Solution

The fourth proportional to 129,938.26, 194,907.40 and 31,442.26 is: 47,163.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,938.26 : 194,907.40 = 31,442.26 : x
  2. Step 2: Convert to fraction form
    129,938.26/194,907.40 = 31,442.26/x
  3. Step 3: Cross multiply
    129,938.26x = 194,907.40 × 31,442.26
  4. Step 4: Simplify right side
    129,938.26x = 6,128,329,146.72
  5. Step 5: Solve for x
    x = 6,128,329,146.72/129,938.26
  6. Step 6: Final answer
    x = 47,163.39

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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.