Finding the Fourth Proportional to 137,481.48, 189,707.58 and 83,746.98
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Solution
The fourth proportional to 137,481.48, 189,707.58 and 83,746.98 is: 115,560.56
Step by Step Solution
- Step 1: Write the proportion equation
137,481.48 : 189,707.58 = 83,746.98 : x - Step 2: Convert to fraction form
137,481.48/189,707.58 = 83,746.98/x - Step 3: Cross multiply
137,481.48x = 189,707.58 × 83,746.98 - Step 4: Simplify right side
137,481.48x = 15,887,436,908.11 - Step 5: Solve for x
x = 15,887,436,908.11/137,481.48 - Step 6: Final answer
x = 115,560.56
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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.