Home / 189,398.94-261,369.63-104,521.20

Finding the Fourth Proportional to 189,398.94, 261,369.63 and 104,521.20

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Solution

The fourth proportional to 189,398.94, 261,369.63 and 104,521.20 is: 144,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,398.94 : 261,369.63 = 104,521.20 : x
  2. Step 2: Convert to fraction form
    189,398.94/261,369.63 = 104,521.20/x
  3. Step 3: Cross multiply
    189,398.94x = 261,369.63 × 104,521.20
  4. Step 4: Simplify right side
    189,398.94x = 27,318,667,371.16
  5. Step 5: Solve for x
    x = 27,318,667,371.16/189,398.94
  6. Step 6: Final answer
    x = 144,238.76

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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.