Home / 141,993.09-212,953.17-42,129.65

Finding the Fourth Proportional to 141,993.09, 212,953.17 and 42,129.65

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Solution

The fourth proportional to 141,993.09, 212,953.17 and 42,129.65 is: 63,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,993.09 : 212,953.17 = 42,129.65 : x
  2. Step 2: Convert to fraction form
    141,993.09/212,953.17 = 42,129.65/x
  3. Step 3: Cross multiply
    141,993.09x = 212,953.17 × 42,129.65
  4. Step 4: Simplify right side
    141,993.09x = 8,971,641,453.72
  5. Step 5: Solve for x
    x = 8,971,641,453.72/141,993.09
  6. Step 6: Final answer
    x = 63,183.65

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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.