Finding the Fourth Proportional to 160,603.13, 221,639.42 and 88,983.13
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Solution
The fourth proportional to 160,603.13, 221,639.42 and 88,983.13 is: 122,800.65
Step by Step Solution
- Step 1: Write the proportion equation
160,603.13 : 221,639.42 = 88,983.13 : x - Step 2: Convert to fraction form
160,603.13/221,639.42 = 88,983.13/x - Step 3: Cross multiply
160,603.13x = 221,639.42 × 88,983.13 - Step 4: Simplify right side
160,603.13x = 19,722,169,322.98 - Step 5: Solve for x
x = 19,722,169,322.98/160,603.13 - Step 6: Final answer
x = 122,800.65
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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.