Home / 215,096.64-321,971.04-139,094.34

Finding the Fourth Proportional to 215,096.64, 321,971.04 and 139,094.34

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Solution

The fourth proportional to 215,096.64, 321,971.04 and 139,094.34 is: 208,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,096.64 : 321,971.04 = 139,094.34 : x
  2. Step 2: Convert to fraction form
    215,096.64/321,971.04 = 139,094.34/x
  3. Step 3: Cross multiply
    215,096.64x = 321,971.04 × 139,094.34
  4. Step 4: Simplify right side
    215,096.64x = 44,784,349,307.91
  5. Step 5: Solve for x
    x = 44,784,349,307.91/215,096.64
  6. Step 6: Final answer
    x = 208,205.71

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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.