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Finding the Fourth Proportional to 189,902.80, 262,023.06 and 113,408.02

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Solution

The fourth proportional to 189,902.80, 262,023.06 and 113,408.02 is: 156,477.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,902.80 : 262,023.06 = 113,408.02 : x
  2. Step 2: Convert to fraction form
    189,902.80/262,023.06 = 113,408.02/x
  3. Step 3: Cross multiply
    189,902.80x = 262,023.06 × 113,408.02
  4. Step 4: Simplify right side
    189,902.80x = 29,715,516,428.94
  5. Step 5: Solve for x
    x = 29,715,516,428.94/189,902.80
  6. Step 6: Final answer
    x = 156,477.51

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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.