Home / 213,039.85-319,316.94-133,114.72

Finding the Fourth Proportional to 213,039.85, 319,316.94 and 133,114.72

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Solution

The fourth proportional to 213,039.85, 319,316.94 and 133,114.72 is: 199,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,039.85 : 319,316.94 = 133,114.72 : x
  2. Step 2: Convert to fraction form
    213,039.85/319,316.94 = 133,114.72/x
  3. Step 3: Cross multiply
    213,039.85x = 319,316.94 × 133,114.72
  4. Step 4: Simplify right side
    213,039.85x = 42,505,785,059.36
  5. Step 5: Solve for x
    x = 42,505,785,059.36/213,039.85
  6. Step 6: Final answer
    x = 199,520.35

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1.5x scale

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.