Home / 141,947.30-212,858.63-53,138.53

Finding the Fourth Proportional to 141,947.30, 212,858.63 and 53,138.53

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Solution

The fourth proportional to 141,947.30, 212,858.63 and 53,138.53 is: 79,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,947.30 : 212,858.63 = 53,138.53 : x
  2. Step 2: Convert to fraction form
    141,947.30/212,858.63 = 53,138.53/x
  3. Step 3: Cross multiply
    141,947.30x = 212,858.63 × 53,138.53
  4. Step 4: Simplify right side
    141,947.30x = 11,310,993,631.72
  5. Step 5: Solve for x
    x = 11,310,993,631.72/141,947.30
  6. Step 6: Final answer
    x = 79,684.46

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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.