Home / 161,690.44-242,660.20-130,177.60

Finding the Fourth Proportional to 161,690.44, 242,660.20 and 130,177.60

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Solution

The fourth proportional to 161,690.44, 242,660.20 and 130,177.60 is: 195,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,690.44 : 242,660.20 = 130,177.60 : x
  2. Step 2: Convert to fraction form
    161,690.44/242,660.20 = 130,177.60/x
  3. Step 3: Cross multiply
    161,690.44x = 242,660.20 × 130,177.60
  4. Step 4: Simplify right side
    161,690.44x = 31,588,922,451.52
  5. Step 5: Solve for x
    x = 31,588,922,451.52/161,690.44
  6. Step 6: Final answer
    x = 195,366.67

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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.