Finding the Fourth Proportional to 117,159.68, 161,655.04 and 69,427.84
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Solution
The fourth proportional to 117,159.68, 161,655.04 and 69,427.84 is: 95,795.42
Step by Step Solution
- Step 1: Write the proportion equation
117,159.68 : 161,655.04 = 69,427.84 : x - Step 2: Convert to fraction form
117,159.68/161,655.04 = 69,427.84/x - Step 3: Cross multiply
117,159.68x = 161,655.04 × 69,427.84 - Step 4: Simplify right side
117,159.68x = 11,223,360,252.31 - Step 5: Solve for x
x = 11,223,360,252.31/117,159.68 - Step 6: Final answer
x = 95,795.42
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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.