Home / 190,317.51-262,519.37-122,423

Finding the Fourth Proportional to 190,317.51, 262,519.37 and 122,423

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Solution

The fourth proportional to 190,317.51, 262,519.37 and 122,423 is: 168,867.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,317.51 : 262,519.37 = 122,423 : x
  2. Step 2: Convert to fraction form
    190,317.51/262,519.37 = 122,423/x
  3. Step 3: Cross multiply
    190,317.51x = 262,519.37 × 122,423
  4. Step 4: Simplify right side
    190,317.51x = 32,138,408,833.51
  5. Step 5: Solve for x
    x = 32,138,408,833.51/190,317.51
  6. Step 6: Final answer
    x = 168,867.33

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1.5x scale

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.