Finding the Fourth Proportional to 119,679.15, 165,160.91 and 68,701.19
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Solution
The fourth proportional to 119,679.15, 165,160.91 and 68,701.19 is: 94,809.76
Step by Step Solution
- Step 1: Write the proportion equation
119,679.15 : 165,160.91 = 68,701.19 : x - Step 2: Convert to fraction form
119,679.15/165,160.91 = 68,701.19/x - Step 3: Cross multiply
119,679.15x = 165,160.91 × 68,701.19 - Step 4: Simplify right side
119,679.15x = 11,346,751,643.14 - Step 5: Solve for x
x = 11,346,751,643.14/119,679.15 - Step 6: Final answer
x = 94,809.76
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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.