Home / 211,982.97-292,522.72-121,339.65

Finding the Fourth Proportional to 211,982.97, 292,522.72 and 121,339.65

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Solution

The fourth proportional to 211,982.97, 292,522.72 and 121,339.65 is: 167,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,982.97 : 292,522.72 = 121,339.65 : x
  2. Step 2: Convert to fraction form
    211,982.97/292,522.72 = 121,339.65/x
  3. Step 3: Cross multiply
    211,982.97x = 292,522.72 × 121,339.65
  4. Step 4: Simplify right side
    211,982.97x = 35,494,604,461.85
  5. Step 5: Solve for x
    x = 35,494,604,461.85/211,982.97
  6. Step 6: Final answer
    x = 167,440.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.