Finding the Fourth Proportional to 135,461.98, 186,944.22 and 81,746.08
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Solution
The fourth proportional to 135,461.98, 186,944.22 and 81,746.08 is: 112,813.63
Step by Step Solution
- Step 1: Write the proportion equation
135,461.98 : 186,944.22 = 81,746.08 : x - Step 2: Convert to fraction form
135,461.98/186,944.22 = 81,746.08/x - Step 3: Cross multiply
135,461.98x = 186,944.22 × 81,746.08 - Step 4: Simplify right side
135,461.98x = 15,281,957,163.66 - Step 5: Solve for x
x = 15,281,957,163.66/135,461.98 - Step 6: Final answer
x = 112,813.63
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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.