Finding the Fourth Proportional to 159,857.70, 220,603.64 and 88,237.74
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Solution
The fourth proportional to 159,857.70, 220,603.64 and 88,237.74 is: 121,768.09
Step by Step Solution
- Step 1: Write the proportion equation
159,857.70 : 220,603.64 = 88,237.74 : x - Step 2: Convert to fraction form
159,857.70/220,603.64 = 88,237.74/x - Step 3: Cross multiply
159,857.70x = 220,603.64 × 88,237.74 - Step 4: Simplify right side
159,857.70x = 19,465,566,629.37 - Step 5: Solve for x
x = 19,465,566,629.37/159,857.70 - Step 6: Final answer
x = 121,768.09
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1.5x scale
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.