Finding the Fourth Proportional to 130,446.18, 195,334.38 and 90,408.06
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Solution
The fourth proportional to 130,446.18, 195,334.38 and 90,408.06 is: 135,379.99
Step by Step Solution
- Step 1: Write the proportion equation
130,446.18 : 195,334.38 = 90,408.06 : x - Step 2: Convert to fraction form
130,446.18/195,334.38 = 90,408.06/x - Step 3: Cross multiply
130,446.18x = 195,334.38 × 90,408.06 - Step 4: Simplify right side
130,446.18x = 17,659,802,347.10 - Step 5: Solve for x
x = 17,659,802,347.10/130,446.18 - Step 6: Final answer
x = 135,379.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.