Finding the Fourth Proportional to 117,174.53, 161,689.30 and 65,482.09
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Solution
The fourth proportional to 117,174.53, 161,689.30 and 65,482.09 is: 90,358.82
Step by Step Solution
- Step 1: Write the proportion equation
117,174.53 : 161,689.30 = 65,482.09 : x - Step 2: Convert to fraction form
117,174.53/161,689.30 = 65,482.09/x - Step 3: Cross multiply
117,174.53x = 161,689.30 × 65,482.09 - Step 4: Simplify right side
117,174.53x = 10,587,752,726.71 - Step 5: Solve for x
x = 10,587,752,726.71/117,174.53 - Step 6: Final answer
x = 90,358.82
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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.