Finding the Fourth Proportional to 157,670.08, 217,821.68 and 103,351.18
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Solution
The fourth proportional to 157,670.08, 217,821.68 and 103,351.18 is: 142,779.96
Step by Step Solution
- Step 1: Write the proportion equation
157,670.08 : 217,821.68 = 103,351.18 : x - Step 2: Convert to fraction form
157,670.08/217,821.68 = 103,351.18/x - Step 3: Cross multiply
157,670.08x = 217,821.68 × 103,351.18 - Step 4: Simplify right side
157,670.08x = 22,512,127,657.58 - Step 5: Solve for x
x = 22,512,127,657.58/157,670.08 - Step 6: Final answer
x = 142,779.96
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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.