Finding the Fourth Proportional to 149,054.03, 205,683.97 and 81,069.62
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Solution
The fourth proportional to 149,054.03, 205,683.97 and 81,069.62 is: 111,870.31
Step by Step Solution
- Step 1: Write the proportion equation
149,054.03 : 205,683.97 = 81,069.62 : x - Step 2: Convert to fraction form
149,054.03/205,683.97 = 81,069.62/x - Step 3: Cross multiply
149,054.03x = 205,683.97 × 81,069.62 - Step 4: Simplify right side
149,054.03x = 16,674,719,854.22 - Step 5: Solve for x
x = 16,674,719,854.22/149,054.03 - Step 6: Final answer
x = 111,870.31
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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.