Home / 149,055.06-205,690.06-81,071.94

Finding the Fourth Proportional to 149,055.06, 205,690.06 and 81,071.94

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Solution

The fourth proportional to 149,055.06, 205,690.06 and 81,071.94 is: 111,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,055.06 : 205,690.06 = 81,071.94 : x
  2. Step 2: Convert to fraction form
    149,055.06/205,690.06 = 81,071.94/x
  3. Step 3: Cross multiply
    149,055.06x = 205,690.06 × 81,071.94
  4. Step 4: Simplify right side
    149,055.06x = 16,675,691,690.57
  5. Step 5: Solve for x
    x = 16,675,691,690.57/149,055.06
  6. Step 6: Final answer
    x = 111,876.05

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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.