Finding the Fourth Proportional to 137,894.21, 190,296.57 and 76,646.13
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Solution
The fourth proportional to 137,894.21, 190,296.57 and 76,646.13 is: 105,773.09
Step by Step Solution
- Step 1: Write the proportion equation
137,894.21 : 190,296.57 = 76,646.13 : x - Step 2: Convert to fraction form
137,894.21/190,296.57 = 76,646.13/x - Step 3: Cross multiply
137,894.21x = 190,296.57 × 76,646.13 - Step 4: Simplify right side
137,894.21x = 14,585,495,642.77 - Step 5: Solve for x
x = 14,585,495,642.77/137,894.21 - Step 6: Final answer
x = 105,773.09
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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.