Home / 189,198.72-261,094.08-104,317.20

Finding the Fourth Proportional to 189,198.72, 261,094.08 and 104,317.20

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Solution

The fourth proportional to 189,198.72, 261,094.08 and 104,317.20 is: 143,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,198.72 : 261,094.08 = 104,317.20 : x
  2. Step 2: Convert to fraction form
    189,198.72/261,094.08 = 104,317.20/x
  3. Step 3: Cross multiply
    189,198.72x = 261,094.08 × 104,317.20
  4. Step 4: Simplify right side
    189,198.72x = 27,236,603,362.18
  5. Step 5: Solve for x
    x = 27,236,603,362.18/189,198.72
  6. Step 6: Final answer
    x = 143,957.65

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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.