Finding the Fourth Proportional to 105,269.13, 145,368.41 and 67,608.99
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Solution
The fourth proportional to 105,269.13, 145,368.41 and 67,608.99 is: 93,362.71
Step by Step Solution
- Step 1: Write the proportion equation
105,269.13 : 145,368.41 = 67,608.99 : x - Step 2: Convert to fraction form
105,269.13/145,368.41 = 67,608.99/x - Step 3: Cross multiply
105,269.13x = 145,368.41 × 67,608.99 - Step 4: Simplify right side
105,269.13x = 9,828,211,039.96 - Step 5: Solve for x
x = 9,828,211,039.96/105,269.13 - Step 6: Final answer
x = 93,362.71
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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.