Finding the Fourth Proportional to 124,138.08, 186,207.52 and 30,643.82
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Solution
The fourth proportional to 124,138.08, 186,207.52 and 30,643.82 is: 45,965.83
Step by Step Solution
- Step 1: Write the proportion equation
124,138.08 : 186,207.52 = 30,643.82 : x - Step 2: Convert to fraction form
124,138.08/186,207.52 = 30,643.82/x - Step 3: Cross multiply
124,138.08x = 186,207.52 × 30,643.82 - Step 4: Simplify right side
124,138.08x = 5,706,109,725.53 - Step 5: Solve for x
x = 5,706,109,725.53/124,138.08 - Step 6: Final answer
x = 45,965.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.