Home / 215,917.49-323,922.71-66,168.13

Finding the Fourth Proportional to 215,917.49, 323,922.71 and 66,168.13

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Solution

The fourth proportional to 215,917.49, 323,922.71 and 66,168.13 is: 99,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,917.49 : 323,922.71 = 66,168.13 : x
  2. Step 2: Convert to fraction form
    215,917.49/323,922.71 = 66,168.13/x
  3. Step 3: Cross multiply
    215,917.49x = 323,922.71 × 66,168.13
  4. Step 4: Simplify right side
    215,917.49x = 21,433,359,985.23
  5. Step 5: Solve for x
    x = 21,433,359,985.23/215,917.49
  6. Step 6: Final answer
    x = 99,266.44

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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.