Finding the Fourth Proportional to 98,189.19, 135,494.60 and 57,901.05
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Solution
The fourth proportional to 98,189.19, 135,494.60 and 57,901.05 is: 79,899.62
Step by Step Solution
- Step 1: Write the proportion equation
98,189.19 : 135,494.60 = 57,901.05 : x - Step 2: Convert to fraction form
98,189.19/135,494.60 = 57,901.05/x - Step 3: Cross multiply
98,189.19x = 135,494.60 × 57,901.05 - Step 4: Simplify right side
98,189.19x = 7,845,279,319.82 - Step 5: Solve for x
x = 7,845,279,319.82/98,189.19 - Step 6: Final answer
x = 79,899.62
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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.