Finding the Fourth Proportional to 168,643.40, 232,718.74 and 93,187.08
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Solution
The fourth proportional to 168,643.40, 232,718.74 and 93,187.08 is: 128,593.11
Step by Step Solution
- Step 1: Write the proportion equation
168,643.40 : 232,718.74 = 93,187.08 : x - Step 2: Convert to fraction form
168,643.40/232,718.74 = 93,187.08/x - Step 3: Cross multiply
168,643.40x = 232,718.74 × 93,187.08 - Step 4: Simplify right side
168,643.40x = 21,686,379,841.88 - Step 5: Solve for x
x = 21,686,379,841.88/168,643.40 - Step 6: Final answer
x = 128,593.11
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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.