Finding the Fourth Proportional to 157,994.24, 218,027.34 and 86,372.82
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Solution
The fourth proportional to 157,994.24, 218,027.34 and 86,372.82 is: 119,191.92
Step by Step Solution
- Step 1: Write the proportion equation
157,994.24 : 218,027.34 = 86,372.82 : x - Step 2: Convert to fraction form
157,994.24/218,027.34 = 86,372.82/x - Step 3: Cross multiply
157,994.24x = 218,027.34 × 86,372.82 - Step 4: Simplify right side
157,994.24x = 18,831,636,192.90 - Step 5: Solve for x
x = 18,831,636,192.90/157,994.24 - Step 6: Final answer
x = 119,191.92
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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.