Finding the Fourth Proportional to 112,473.36, 155,112.68 and 93,322.80
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Solution
The fourth proportional to 112,473.36, 155,112.68 and 93,322.80 is: 128,702.03
Step by Step Solution
- Step 1: Write the proportion equation
112,473.36 : 155,112.68 = 93,322.80 : x - Step 2: Convert to fraction form
112,473.36/155,112.68 = 93,322.80/x - Step 3: Cross multiply
112,473.36x = 155,112.68 × 93,322.80 - Step 4: Simplify right side
112,473.36x = 14,475,549,613.10 - Step 5: Solve for x
x = 14,475,549,613.10/112,473.36 - Step 6: Final answer
x = 128,702.03
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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.