Home / 190,395.78-262,865.82-122,530.96

Finding the Fourth Proportional to 190,395.78, 262,865.82 and 122,530.96

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Solution

The fourth proportional to 190,395.78, 262,865.82 and 122,530.96 is: 169,169.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,395.78 : 262,865.82 = 122,530.96 : x
  2. Step 2: Convert to fraction form
    190,395.78/262,865.82 = 122,530.96/x
  3. Step 3: Cross multiply
    190,395.78x = 262,865.82 × 122,530.96
  4. Step 4: Simplify right side
    190,395.78x = 32,209,201,275.79
  5. Step 5: Solve for x
    x = 32,209,201,275.79/190,395.78
  6. Step 6: Final answer
    x = 169,169.72

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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.