Home / 166,435.88-229,681.52-90,984.38

Finding the Fourth Proportional to 166,435.88, 229,681.52 and 90,984.38

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Solution

The fourth proportional to 166,435.88, 229,681.52 and 90,984.38 is: 125,558.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,435.88 : 229,681.52 = 90,984.38 : x
  2. Step 2: Convert to fraction form
    166,435.88/229,681.52 = 90,984.38/x
  3. Step 3: Cross multiply
    166,435.88x = 229,681.52 × 90,984.38
  4. Step 4: Simplify right side
    166,435.88x = 20,897,429,091.33
  5. Step 5: Solve for x
    x = 20,897,429,091.33/166,435.88
  6. Step 6: Final answer
    x = 125,558.44

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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.