Finding the Fourth Proportional to 98,002.14, 135,284.32 and 66,214.08
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Solution
The fourth proportional to 98,002.14, 135,284.32 and 66,214.08 is: 91,403.38
Step by Step Solution
- Step 1: Write the proportion equation
98,002.14 : 135,284.32 = 66,214.08 : x - Step 2: Convert to fraction form
98,002.14/135,284.32 = 66,214.08/x - Step 3: Cross multiply
98,002.14x = 135,284.32 × 66,214.08 - Step 4: Simplify right side
98,002.14x = 8,957,726,787.23 - Step 5: Solve for x
x = 8,957,726,787.23/98,002.14 - Step 6: Final answer
x = 91,403.38
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1.5x scale
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.