Finding the Fourth Proportional to 117,625.24, 162,313.14 and 69,890.68
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Solution
The fourth proportional to 117,625.24, 162,313.14 and 69,890.68 is: 96,443.38
Step by Step Solution
- Step 1: Write the proportion equation
117,625.24 : 162,313.14 = 69,890.68 : x - Step 2: Convert to fraction form
117,625.24/162,313.14 = 69,890.68/x - Step 3: Cross multiply
117,625.24x = 162,313.14 × 69,890.68 - Step 4: Simplify right side
117,625.24x = 11,344,175,727.54 - Step 5: Solve for x
x = 11,344,175,727.54/117,625.24 - Step 6: Final answer
x = 96,443.38
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1.5x scale
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.