Finding the Fourth Proportional to 161,752.49, 223,215.42 and 90,130.99
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Solution
The fourth proportional to 161,752.49, 223,215.42 and 90,130.99 is: 124,379.09
Step by Step Solution
- Step 1: Write the proportion equation
161,752.49 : 223,215.42 = 90,130.99 : x - Step 2: Convert to fraction form
161,752.49/223,215.42 = 90,130.99/x - Step 3: Cross multiply
161,752.49x = 223,215.42 × 90,130.99 - Step 4: Simplify right side
161,752.49x = 20,118,626,787.87 - Step 5: Solve for x
x = 20,118,626,787.87/161,752.49 - Step 6: Final answer
x = 124,379.09
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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.