Finding the Fourth Proportional to 134,640.99, 185,796.18 and 74,212.11
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Solution
The fourth proportional to 134,640.99, 185,796.18 and 74,212.11 is: 102,408.09
Step by Step Solution
- Step 1: Write the proportion equation
134,640.99 : 185,796.18 = 74,212.11 : x - Step 2: Convert to fraction form
134,640.99/185,796.18 = 74,212.11/x - Step 3: Cross multiply
134,640.99x = 185,796.18 × 74,212.11 - Step 4: Simplify right side
134,640.99x = 13,788,326,547.74 - Step 5: Solve for x
x = 13,788,326,547.74/134,640.99 - Step 6: Final answer
x = 102,408.09
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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.