Home / 173,853.40-260,780.10-85,120.60

Finding the Fourth Proportional to 173,853.40, 260,780.10 and 85,120.60

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Solution

The fourth proportional to 173,853.40, 260,780.10 and 85,120.60 is: 127,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,853.40 : 260,780.10 = 85,120.60 : x
  2. Step 2: Convert to fraction form
    173,853.40/260,780.10 = 85,120.60/x
  3. Step 3: Cross multiply
    173,853.40x = 260,780.10 × 85,120.60
  4. Step 4: Simplify right side
    173,853.40x = 22,197,758,580.06
  5. Step 5: Solve for x
    x = 22,197,758,580.06/173,853.40
  6. Step 6: Final answer
    x = 127,680.90

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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.