Home / 189,328.91-261,255.71-104,440.50

Finding the Fourth Proportional to 189,328.91, 261,255.71 and 104,440.50

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Solution

The fourth proportional to 189,328.91, 261,255.71 and 104,440.50 is: 144,117.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,328.91 : 261,255.71 = 104,440.50 : x
  2. Step 2: Convert to fraction form
    189,328.91/261,255.71 = 104,440.50/x
  3. Step 3: Cross multiply
    189,328.91x = 261,255.71 × 104,440.50
  4. Step 4: Simplify right side
    189,328.91x = 27,285,677,241.36
  5. Step 5: Solve for x
    x = 27,285,677,241.36/189,328.91
  6. Step 6: Final answer
    x = 144,117.86

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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.