Home / 141,699.78-212,422.50-129,373.27

Finding the Fourth Proportional to 141,699.78, 212,422.50 and 129,373.27

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Solution

The fourth proportional to 141,699.78, 212,422.50 and 129,373.27 is: 193,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,699.78 : 212,422.50 = 129,373.27 : x
  2. Step 2: Convert to fraction form
    141,699.78/212,422.50 = 129,373.27/x
  3. Step 3: Cross multiply
    141,699.78x = 212,422.50 × 129,373.27
  4. Step 4: Simplify right side
    141,699.78x = 27,481,792,915.52
  5. Step 5: Solve for x
    x = 27,481,792,915.52/141,699.78
  6. Step 6: Final answer
    x = 193,943.79

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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.