Home / 209,072.86-312,834.26-124,878.83

Finding the Fourth Proportional to 209,072.86, 312,834.26 and 124,878.83

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Solution

The fourth proportional to 209,072.86, 312,834.26 and 124,878.83 is: 186,855.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,072.86 : 312,834.26 = 124,878.83 : x
  2. Step 2: Convert to fraction form
    209,072.86/312,834.26 = 124,878.83/x
  3. Step 3: Cross multiply
    209,072.86x = 312,834.26 × 124,878.83
  4. Step 4: Simplify right side
    209,072.86x = 39,066,375,120.74
  5. Step 5: Solve for x
    x = 39,066,375,120.74/209,072.86
  6. Step 6: Final answer
    x = 186,855.32

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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.