Home / 211,878.75-292,391.32-115,081.62

Finding the Fourth Proportional to 211,878.75, 292,391.32 and 115,081.62

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Solution

The fourth proportional to 211,878.75, 292,391.32 and 115,081.62 is: 158,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,878.75 : 292,391.32 = 115,081.62 : x
  2. Step 2: Convert to fraction form
    211,878.75/292,391.32 = 115,081.62/x
  3. Step 3: Cross multiply
    211,878.75x = 292,391.32 × 115,081.62
  4. Step 4: Simplify right side
    211,878.75x = 33,648,866,779.54
  5. Step 5: Solve for x
    x = 33,648,866,779.54/211,878.75
  6. Step 6: Final answer
    x = 158,811.90

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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.