Finding the Fourth Proportional to 105,152.73, 145,110.03 and 57,406.08
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Solution
The fourth proportional to 105,152.73, 145,110.03 and 57,406.08 is: 79,219.99
Step by Step Solution
- Step 1: Write the proportion equation
105,152.73 : 145,110.03 = 57,406.08 : x - Step 2: Convert to fraction form
105,152.73/145,110.03 = 57,406.08/x - Step 3: Cross multiply
105,152.73x = 145,110.03 × 57,406.08 - Step 4: Simplify right side
105,152.73x = 8,330,197,990.98 - Step 5: Solve for x
x = 8,330,197,990.98/105,152.73 - Step 6: Final answer
x = 79,219.99
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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.