Home / 189,197.02-261,093.92-103,155.30

Finding the Fourth Proportional to 189,197.02, 261,093.92 and 103,155.30

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Solution

The fourth proportional to 189,197.02, 261,093.92 and 103,155.30 is: 142,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,197.02 : 261,093.92 = 103,155.30 : x
  2. Step 2: Convert to fraction form
    189,197.02/261,093.92 = 103,155.30/x
  3. Step 3: Cross multiply
    189,197.02x = 261,093.92 × 103,155.30
  4. Step 4: Simplify right side
    189,197.02x = 26,933,221,266.05
  5. Step 5: Solve for x
    x = 26,933,221,266.05/189,197.02
  6. Step 6: Final answer
    x = 142,355.42

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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.