Home / 166,771.32-230,144.47-90,290.40

Finding the Fourth Proportional to 166,771.32, 230,144.47 and 90,290.40

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Solution

The fourth proportional to 166,771.32, 230,144.47 and 90,290.40 is: 124,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,771.32 : 230,144.47 = 90,290.40 : x
  2. Step 2: Convert to fraction form
    166,771.32/230,144.47 = 90,290.40/x
  3. Step 3: Cross multiply
    166,771.32x = 230,144.47 × 90,290.40
  4. Step 4: Simplify right side
    166,771.32x = 20,779,836,254.09
  5. Step 5: Solve for x
    x = 20,779,836,254.09/166,771.32
  6. Step 6: Final answer
    x = 124,600.78

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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.