Finding the Fourth Proportional to 119,988.39, 165,616.04 and 69,006.68
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Solution
The fourth proportional to 119,988.39, 165,616.04 and 69,006.68 is: 95,247.67
Step by Step Solution
- Step 1: Write the proportion equation
119,988.39 : 165,616.04 = 69,006.68 : x - Step 2: Convert to fraction form
119,988.39/165,616.04 = 69,006.68/x - Step 3: Cross multiply
119,988.39x = 165,616.04 × 69,006.68 - Step 4: Simplify right side
119,988.39x = 11,428,613,972.23 - Step 5: Solve for x
x = 11,428,613,972.23/119,988.39 - Step 6: Final answer
x = 95,247.67
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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.