Home / 198,130.08-273,420-113,296.80

Finding the Fourth Proportional to 198,130.08, 273,420 and 113,296.80

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Solution

The fourth proportional to 198,130.08, 273,420 and 113,296.80 is: 156,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,130.08 : 273,420 = 113,296.80 : x
  2. Step 2: Convert to fraction form
    198,130.08/273,420 = 113,296.80/x
  3. Step 3: Cross multiply
    198,130.08x = 273,420 × 113,296.80
  4. Step 4: Simplify right side
    198,130.08x = 30,977,611,056
  5. Step 5: Solve for x
    x = 30,977,611,056/198,130.08
  6. Step 6: Final answer
    x = 156,349.86

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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.