Home / 190,138.19-262,390.76-105,255.26

Finding the Fourth Proportional to 190,138.19, 262,390.76 and 105,255.26

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Solution

The fourth proportional to 190,138.19, 262,390.76 and 105,255.26 is: 145,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,138.19 : 262,390.76 = 105,255.26 : x
  2. Step 2: Convert to fraction form
    190,138.19/262,390.76 = 105,255.26/x
  3. Step 3: Cross multiply
    190,138.19x = 262,390.76 × 105,255.26
  4. Step 4: Simplify right side
    190,138.19x = 27,618,006,616.58
  5. Step 5: Solve for x
    x = 27,618,006,616.58/190,138.19
  6. Step 6: Final answer
    x = 145,252.28

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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.