Finding the Fourth Proportional to 97,279.20, 145,918.80 and 84,448.80
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Solution
The fourth proportional to 97,279.20, 145,918.80 and 84,448.80 is: 126,673.20
Step by Step Solution
- Step 1: Write the proportion equation
97,279.20 : 145,918.80 = 84,448.80 : x - Step 2: Convert to fraction form
97,279.20/145,918.80 = 84,448.80/x - Step 3: Cross multiply
97,279.20x = 145,918.80 × 84,448.80 - Step 4: Simplify right side
97,279.20x = 12,322,667,557.44 - Step 5: Solve for x
x = 12,322,667,557.44/97,279.20 - Step 6: Final answer
x = 126,673.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.