Home / 189,491.16-261,490.94-104,606.40

Finding the Fourth Proportional to 189,491.16, 261,490.94 and 104,606.40

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Solution

The fourth proportional to 189,491.16, 261,490.94 and 104,606.40 is: 144,353.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,491.16 : 261,490.94 = 104,606.40 : x
  2. Step 2: Convert to fraction form
    189,491.16/261,490.94 = 104,606.40/x
  3. Step 3: Cross multiply
    189,491.16x = 261,490.94 × 104,606.40
  4. Step 4: Simplify right side
    189,491.16x = 27,353,625,342.98
  5. Step 5: Solve for x
    x = 27,353,625,342.98/189,491.16
  6. Step 6: Final answer
    x = 144,353.04

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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.