Finding the Fourth Proportional to 134,688.96, 185,872.08 and 74,261.76
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Solution
The fourth proportional to 134,688.96, 185,872.08 and 74,261.76 is: 102,481.95
Step by Step Solution
- Step 1: Write the proportion equation
134,688.96 : 185,872.08 = 74,261.76 : x - Step 2: Convert to fraction form
134,688.96/185,872.08 = 74,261.76/x - Step 3: Cross multiply
134,688.96x = 185,872.08 × 74,261.76 - Step 4: Simplify right side
134,688.96x = 13,803,187,795.66 - Step 5: Solve for x
x = 13,803,187,795.66/134,688.96 - Step 6: Final answer
x = 102,481.95
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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.