Finding the Fourth Proportional to 137,643.40, 189,746.84 and 97,285.96
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Solution
The fourth proportional to 137,643.40, 189,746.84 and 97,285.96 is: 134,112.52
Step by Step Solution
- Step 1: Write the proportion equation
137,643.40 : 189,746.84 = 97,285.96 : x - Step 2: Convert to fraction form
137,643.40/189,746.84 = 97,285.96/x - Step 3: Cross multiply
137,643.40x = 189,746.84 × 97,285.96 - Step 4: Simplify right side
137,643.40x = 18,459,703,486.37 - Step 5: Solve for x
x = 18,459,703,486.37/137,643.40 - Step 6: Final answer
x = 134,112.52
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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.