Home / 141,947.80-212,859.38-53,139.03

Finding the Fourth Proportional to 141,947.80, 212,859.38 and 53,139.03

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Solution

The fourth proportional to 141,947.80, 212,859.38 and 53,139.03 is: 79,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,947.80 : 212,859.38 = 53,139.03 : x
  2. Step 2: Convert to fraction form
    141,947.80/212,859.38 = 53,139.03/x
  3. Step 3: Cross multiply
    141,947.80x = 212,859.38 × 53,139.03
  4. Step 4: Simplify right side
    141,947.80x = 11,311,139,915.30
  5. Step 5: Solve for x
    x = 11,311,139,915.30/141,947.80
  6. Step 6: Final answer
    x = 79,685.21

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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.