Finding the Fourth Proportional to 112,959.63, 155,884.37 and 62,658.63
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Solution
The fourth proportional to 112,959.63, 155,884.37 and 62,658.63 is: 86,468.95
Step by Step Solution
- Step 1: Write the proportion equation
112,959.63 : 155,884.37 = 62,658.63 : x - Step 2: Convert to fraction form
112,959.63/155,884.37 = 62,658.63/x - Step 3: Cross multiply
112,959.63x = 155,884.37 × 62,658.63 - Step 4: Simplify right side
112,959.63x = 9,767,500,749.32 - Step 5: Solve for x
x = 9,767,500,749.32/112,959.63 - Step 6: Final answer
x = 86,468.95
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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.