Finding the Fourth Proportional to 108,407.03, 149,579.26 and 74,403.02
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Solution
The fourth proportional to 108,407.03, 149,579.26 and 74,403.02 is: 102,660.77
Step by Step Solution
- Step 1: Write the proportion equation
108,407.03 : 149,579.26 = 74,403.02 : x - Step 2: Convert to fraction form
108,407.03/149,579.26 = 74,403.02/x - Step 3: Cross multiply
108,407.03x = 149,579.26 × 74,403.02 - Step 4: Simplify right side
108,407.03x = 11,129,148,861.31 - Step 5: Solve for x
x = 11,129,148,861.31/108,407.03 - Step 6: Final answer
x = 102,660.77
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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.