Home / 212,022.94-292,595.10-121,378.54

Finding the Fourth Proportional to 212,022.94, 292,595.10 and 121,378.54

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Solution

The fourth proportional to 212,022.94, 292,595.10 and 121,378.54 is: 167,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,022.94 : 292,595.10 = 121,378.54 : x
  2. Step 2: Convert to fraction form
    212,022.94/292,595.10 = 121,378.54/x
  3. Step 3: Cross multiply
    212,022.94x = 292,595.10 × 121,378.54
  4. Step 4: Simplify right side
    212,022.94x = 35,514,766,049.15
  5. Step 5: Solve for x
    x = 35,514,766,049.15/212,022.94
  6. Step 6: Final answer
    x = 167,504.36

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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.