Finding the Fourth Proportional to 149,140.10, 205,817.99 and 84,612.06
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Solution
The fourth proportional to 149,140.10, 205,817.99 and 84,612.06 is: 116,767.28
Step by Step Solution
- Step 1: Write the proportion equation
149,140.10 : 205,817.99 = 84,612.06 : x - Step 2: Convert to fraction form
149,140.10/205,817.99 = 84,612.06/x - Step 3: Cross multiply
149,140.10x = 205,817.99 × 84,612.06 - Step 4: Simplify right side
149,140.10x = 17,414,684,118.96 - Step 5: Solve for x
x = 17,414,684,118.96/149,140.10 - Step 6: Final answer
x = 116,767.28
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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.