Finding the Fourth Proportional to 149,724.60, 206,654.67 and 98,746.44
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Solution
The fourth proportional to 149,724.60, 206,654.67 and 98,746.44 is: 136,292.99
Step by Step Solution
- Step 1: Write the proportion equation
149,724.60 : 206,654.67 = 98,746.44 : x - Step 2: Convert to fraction form
149,724.60/206,654.67 = 98,746.44/x - Step 3: Cross multiply
149,724.60x = 206,654.67 × 98,746.44 - Step 4: Simplify right side
149,724.60x = 20,406,412,971.87 - Step 5: Solve for x
x = 20,406,412,971.87/149,724.60 - Step 6: Final answer
x = 136,292.99
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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.