Finding the Fourth Proportional to 168,691.62, 232,643.66 and 139,965.80
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Solution
The fourth proportional to 168,691.62, 232,643.66 and 139,965.80 is: 193,027.70
Step by Step Solution
- Step 1: Write the proportion equation
168,691.62 : 232,643.66 = 139,965.80 : x - Step 2: Convert to fraction form
168,691.62/232,643.66 = 139,965.80/x - Step 3: Cross multiply
168,691.62x = 232,643.66 × 139,965.80 - Step 4: Simplify right side
168,691.62x = 32,562,155,986.83 - Step 5: Solve for x
x = 32,562,155,986.83/168,691.62 - Step 6: Final answer
x = 193,027.70
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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.