Finding the Fourth Proportional to 105,231.24, 145,269.60 and 62,218.08
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Solution
The fourth proportional to 105,231.24, 145,269.60 and 62,218.08 is: 85,890.80
Step by Step Solution
- Step 1: Write the proportion equation
105,231.24 : 145,269.60 = 62,218.08 : x - Step 2: Convert to fraction form
105,231.24/145,269.60 = 62,218.08/x - Step 3: Cross multiply
105,231.24x = 145,269.60 × 62,218.08 - Step 4: Simplify right side
105,231.24x = 9,038,395,594.37 - Step 5: Solve for x
x = 9,038,395,594.37/105,231.24 - Step 6: Final answer
x = 85,890.80
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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.