Finding the Fourth Proportional to 137,816.06, 190,203.77 and 84,089.68
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Solution
The fourth proportional to 137,816.06, 190,203.77 and 84,089.68 is: 116,054.50
Step by Step Solution
- Step 1: Write the proportion equation
137,816.06 : 190,203.77 = 84,089.68 : x - Step 2: Convert to fraction form
137,816.06/190,203.77 = 84,089.68/x - Step 3: Cross multiply
137,816.06x = 190,203.77 × 84,089.68 - Step 4: Simplify right side
137,816.06x = 15,994,173,888.81 - Step 5: Solve for x
x = 15,994,173,888.81/137,816.06 - Step 6: Final answer
x = 116,054.50
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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.