Finding the Fourth Proportional to 90,708.04, 135,376.07 and 88,346.08
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Solution
The fourth proportional to 90,708.04, 135,376.07 and 88,346.08 is: 131,850.99
Step by Step Solution
- Step 1: Write the proportion equation
90,708.04 : 135,376.07 = 88,346.08 : x - Step 2: Convert to fraction form
90,708.04/135,376.07 = 88,346.08/x - Step 3: Cross multiply
90,708.04x = 135,376.07 × 88,346.08 - Step 4: Simplify right side
90,708.04x = 11,959,945,110.31 - Step 5: Solve for x
x = 11,959,945,110.31/90,708.04 - Step 6: Final answer
x = 131,850.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.