Finding the Fourth Proportional to 145,963.79, 201,395.69 and 88,601.70
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Solution
The fourth proportional to 145,963.79, 201,395.69 and 88,601.70 is: 122,249.50
Step by Step Solution
- Step 1: Write the proportion equation
145,963.79 : 201,395.69 = 88,601.70 : x - Step 2: Convert to fraction form
145,963.79/201,395.69 = 88,601.70/x - Step 3: Cross multiply
145,963.79x = 201,395.69 × 88,601.70 - Step 4: Simplify right side
145,963.79x = 17,844,000,506.67 - Step 5: Solve for x
x = 17,844,000,506.67/145,963.79 - Step 6: Final answer
x = 122,249.50
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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.