Home / 212,299.01-292,979.64-121,672.34

Finding the Fourth Proportional to 212,299.01, 292,979.64 and 121,672.34

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Solution

The fourth proportional to 212,299.01, 292,979.64 and 121,672.34 is: 167,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,299.01 : 292,979.64 = 121,672.34 : x
  2. Step 2: Convert to fraction form
    212,299.01/292,979.64 = 121,672.34/x
  3. Step 3: Cross multiply
    212,299.01x = 292,979.64 × 121,672.34
  4. Step 4: Simplify right side
    212,299.01x = 35,647,519,767.01
  5. Step 5: Solve for x
    x = 35,647,519,767.01/212,299.01
  6. Step 6: Final answer
    x = 167,911.85

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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.