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Finding the Fourth Proportional to 158,297.63, 218,450.75 and 91,229.63

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Solution

The fourth proportional to 158,297.63, 218,450.75 and 91,229.63 is: 125,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,297.63 : 218,450.75 = 91,229.63 : x
  2. Step 2: Convert to fraction form
    158,297.63/218,450.75 = 91,229.63/x
  3. Step 3: Cross multiply
    158,297.63x = 218,450.75 × 91,229.63
  4. Step 4: Simplify right side
    158,297.63x = 19,929,179,547.32
  5. Step 5: Solve for x
    x = 19,929,179,547.32/158,297.63
  6. Step 6: Final answer
    x = 125,896.90

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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.