Home / 268,736.58-403,164.81-81,762.66

Finding the Fourth Proportional to 268,736.58, 403,164.81 and 81,762.66

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Solution

The fourth proportional to 268,736.58, 403,164.81 and 81,762.66 is: 122,662.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,736.58 : 403,164.81 = 81,762.66 : x
  2. Step 2: Convert to fraction form
    268,736.58/403,164.81 = 81,762.66/x
  3. Step 3: Cross multiply
    268,736.58x = 403,164.81 × 81,762.66
  4. Step 4: Simplify right side
    268,736.58x = 32,963,827,283.99
  5. Step 5: Solve for x
    x = 32,963,827,283.99/268,736.58
  6. Step 6: Final answer
    x = 122,662.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.