Home / 212,059.38-292,642.55-121,416.73

Finding the Fourth Proportional to 212,059.38, 292,642.55 and 121,416.73

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Solution

The fourth proportional to 212,059.38, 292,642.55 and 121,416.73 is: 167,555.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,059.38 : 292,642.55 = 121,416.73 : x
  2. Step 2: Convert to fraction form
    212,059.38/292,642.55 = 121,416.73/x
  3. Step 3: Cross multiply
    212,059.38x = 292,642.55 × 121,416.73
  4. Step 4: Simplify right side
    212,059.38x = 35,531,701,479.86
  5. Step 5: Solve for x
    x = 35,531,701,479.86/212,059.38
  6. Step 6: Final answer
    x = 167,555.43

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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.