Finding the Fourth Proportional to 117,069.08, 161,538.05 and 68,652.73
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Solution
The fourth proportional to 117,069.08, 161,538.05 and 68,652.73 is: 94,730.62
Step by Step Solution
- Step 1: Write the proportion equation
117,069.08 : 161,538.05 = 68,652.73 : x - Step 2: Convert to fraction form
117,069.08/161,538.05 = 68,652.73/x - Step 3: Cross multiply
117,069.08x = 161,538.05 × 68,652.73 - Step 4: Simplify right side
117,069.08x = 11,090,026,980.42 - Step 5: Solve for x
x = 11,090,026,980.42/117,069.08 - Step 6: Final answer
x = 94,730.62
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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.