Home / 166,447.90-229,698.10-90,996.40

Finding the Fourth Proportional to 166,447.90, 229,698.10 and 90,996.40

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Solution

The fourth proportional to 166,447.90, 229,698.10 and 90,996.40 is: 125,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,447.90 : 229,698.10 = 90,996.40 : x
  2. Step 2: Convert to fraction form
    166,447.90/229,698.10 = 90,996.40/x
  3. Step 3: Cross multiply
    166,447.90x = 229,698.10 × 90,996.40
  4. Step 4: Simplify right side
    166,447.90x = 20,901,700,186.84
  5. Step 5: Solve for x
    x = 20,901,700,186.84/166,447.90
  6. Step 6: Final answer
    x = 125,575.03

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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.