Finding the Fourth Proportional to 99,206.79, 148,654.64 and 84,354.63
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Solution
The fourth proportional to 99,206.79, 148,654.64 and 84,354.63 is: 126,399.68
Step by Step Solution
- Step 1: Write the proportion equation
99,206.79 : 148,654.64 = 84,354.63 : x - Step 2: Convert to fraction form
99,206.79/148,654.64 = 84,354.63/x - Step 3: Cross multiply
99,206.79x = 148,654.64 × 84,354.63 - Step 4: Simplify right side
99,206.79x = 12,539,706,733.21 - Step 5: Solve for x
x = 12,539,706,733.21/99,206.79 - Step 6: Final answer
x = 126,399.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.