Finding the Fourth Proportional to 117,932.14, 162,746.40 and 64,217.14
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Solution
The fourth proportional to 117,932.14, 162,746.40 and 64,217.14 is: 88,619.68
Step by Step Solution
- Step 1: Write the proportion equation
117,932.14 : 162,746.40 = 64,217.14 : x - Step 2: Convert to fraction form
117,932.14/162,746.40 = 64,217.14/x - Step 3: Cross multiply
117,932.14x = 162,746.40 × 64,217.14 - Step 4: Simplify right side
117,932.14x = 10,451,108,187.24 - Step 5: Solve for x
x = 10,451,108,187.24/117,932.14 - Step 6: Final answer
x = 88,619.68
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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.