Home / 173,904.40-260,856.60-85,112.20

Finding the Fourth Proportional to 173,904.40, 260,856.60 and 85,112.20

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Solution

The fourth proportional to 173,904.40, 260,856.60 and 85,112.20 is: 127,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,904.40 : 260,856.60 = 85,112.20 : x
  2. Step 2: Convert to fraction form
    173,904.40/260,856.60 = 85,112.20/x
  3. Step 3: Cross multiply
    173,904.40x = 260,856.60 × 85,112.20
  4. Step 4: Simplify right side
    173,904.40x = 22,202,079,110.52
  5. Step 5: Solve for x
    x = 22,202,079,110.52/173,904.40
  6. Step 6: Final answer
    x = 127,668.30

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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.