Finding the Fourth Proportional to 100,375.08, 138,577.68 and 62,700.36
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Solution
The fourth proportional to 100,375.08, 138,577.68 and 62,700.36 is: 86,564.02
Step by Step Solution
- Step 1: Write the proportion equation
100,375.08 : 138,577.68 = 62,700.36 : x - Step 2: Convert to fraction form
100,375.08/138,577.68 = 62,700.36/x - Step 3: Cross multiply
100,375.08x = 138,577.68 × 62,700.36 - Step 4: Simplify right side
100,375.08x = 8,688,870,423.96 - Step 5: Solve for x
x = 8,688,870,423.96/100,375.08 - Step 6: Final answer
x = 86,564.02
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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.