Home / 141,523.21-212,222.49-74,947.78

Finding the Fourth Proportional to 141,523.21, 212,222.49 and 74,947.78

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Solution

The fourth proportional to 141,523.21, 212,222.49 and 74,947.78 is: 112,388.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,523.21 : 212,222.49 = 74,947.78 : x
  2. Step 2: Convert to fraction form
    141,523.21/212,222.49 = 74,947.78/x
  3. Step 3: Cross multiply
    141,523.21x = 212,222.49 × 74,947.78
  4. Step 4: Simplify right side
    141,523.21x = 15,905,604,491.57
  5. Step 5: Solve for x
    x = 15,905,604,491.57/141,523.21
  6. Step 6: Final answer
    x = 112,388.66

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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.