Finding the Fourth Proportional to 115,408.67, 159,335.97 and 74,594.17
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Solution
The fourth proportional to 115,408.67, 159,335.97 and 74,594.17 is: 102,986.49
Step by Step Solution
- Step 1: Write the proportion equation
115,408.67 : 159,335.97 = 74,594.17 : x - Step 2: Convert to fraction form
115,408.67/159,335.97 = 74,594.17/x - Step 3: Cross multiply
115,408.67x = 159,335.97 × 74,594.17 - Step 4: Simplify right side
115,408.67x = 11,885,533,980.96 - Step 5: Solve for x
x = 11,885,533,980.96/115,408.67 - Step 6: Final answer
x = 102,986.49
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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.