Home / 103,111.88-154,466.44-71,085.28

Finding the Fourth Proportional to 103,111.88, 154,466.44 and 71,085.28

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Solution

The fourth proportional to 103,111.88, 154,466.44 and 71,085.28 is: 106,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,111.88 : 154,466.44 = 71,085.28 : x
  2. Step 2: Convert to fraction form
    103,111.88/154,466.44 = 71,085.28/x
  3. Step 3: Cross multiply
    103,111.88x = 154,466.44 × 71,085.28
  4. Step 4: Simplify right side
    103,111.88x = 10,980,290,138.00
  5. Step 5: Solve for x
    x = 10,980,290,138.00/103,111.88
  6. Step 6: Final answer
    x = 106,489.09

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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.