Finding the Fourth Proportional to 132,427.08, 182,688.66 and 78,681.96
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Solution
The fourth proportional to 132,427.08, 182,688.66 and 78,681.96 is: 108,545.03
Step by Step Solution
- Step 1: Write the proportion equation
132,427.08 : 182,688.66 = 78,681.96 : x - Step 2: Convert to fraction form
132,427.08/182,688.66 = 78,681.96/x - Step 3: Cross multiply
132,427.08x = 182,688.66 × 78,681.96 - Step 4: Simplify right side
132,427.08x = 14,374,301,838.57 - Step 5: Solve for x
x = 14,374,301,838.57/132,427.08 - Step 6: Final answer
x = 108,545.03
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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.