Finding the Fourth Proportional to 161,854.75, 223,356.99 and 90,239.14
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Solution
The fourth proportional to 161,854.75, 223,356.99 and 90,239.14 is: 124,528.58
Step by Step Solution
- Step 1: Write the proportion equation
161,854.75 : 223,356.99 = 90,239.14 : x - Step 2: Convert to fraction form
161,854.75/223,356.99 = 90,239.14/x - Step 3: Cross multiply
161,854.75x = 223,356.99 × 90,239.14 - Step 4: Simplify right side
161,854.75x = 20,155,542,690.59 - Step 5: Solve for x
x = 20,155,542,690.59/161,854.75 - Step 6: Final answer
x = 124,528.58
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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.