Finding the Fourth Proportional to 186,781.79, 257,757.65 and 106,209.32
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Solution
The fourth proportional to 186,781.79, 257,757.65 and 106,209.32 is: 146,568.17
Step by Step Solution
- Step 1: Write the proportion equation
186,781.79 : 257,757.65 = 106,209.32 : x - Step 2: Convert to fraction form
186,781.79/257,757.65 = 106,209.32/x - Step 3: Cross multiply
186,781.79x = 257,757.65 × 106,209.32 - Step 4: Simplify right side
186,781.79x = 27,376,265,641.22 - Step 5: Solve for x
x = 27,376,265,641.22/186,781.79 - Step 6: Final answer
x = 146,568.17
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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.