Finding the Fourth Proportional to 117,646.84, 162,376.20 and 69,890.96
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Solution
The fourth proportional to 117,646.84, 162,376.20 and 69,890.96 is: 96,463.52
Step by Step Solution
- Step 1: Write the proportion equation
117,646.84 : 162,376.20 = 69,890.96 : x - Step 2: Convert to fraction form
117,646.84/162,376.20 = 69,890.96/x - Step 3: Cross multiply
117,646.84x = 162,376.20 × 69,890.96 - Step 4: Simplify right side
117,646.84x = 11,348,628,296.18 - Step 5: Solve for x
x = 11,348,628,296.18/117,646.84 - Step 6: Final answer
x = 96,463.52
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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.