Home / 141,992.09-212,951.68-42,128.65

Finding the Fourth Proportional to 141,992.09, 212,951.68 and 42,128.65

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Solution

The fourth proportional to 141,992.09, 212,951.68 and 42,128.65 is: 63,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,992.09 : 212,951.68 = 42,128.65 : x
  2. Step 2: Convert to fraction form
    141,992.09/212,951.68 = 42,128.65/x
  3. Step 3: Cross multiply
    141,992.09x = 212,951.68 × 42,128.65
  4. Step 4: Simplify right side
    141,992.09x = 8,971,366,582.99
  5. Step 5: Solve for x
    x = 8,971,366,582.99/141,992.09
  6. Step 6: Final answer
    x = 63,182.16

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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.