Finding the Fourth Proportional to 99,426.96, 149,139.68 and 29,305.28
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Solution
The fourth proportional to 99,426.96, 149,139.68 and 29,305.28 is: 43,957.70
Step by Step Solution
- Step 1: Write the proportion equation
99,426.96 : 149,139.68 = 29,305.28 : x - Step 2: Convert to fraction form
99,426.96/149,139.68 = 29,305.28/x - Step 3: Cross multiply
99,426.96x = 149,139.68 × 29,305.28 - Step 4: Simplify right side
99,426.96x = 4,370,580,081.51 - Step 5: Solve for x
x = 4,370,580,081.51/99,426.96 - Step 6: Final answer
x = 43,957.70
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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.