Finding the Fourth Proportional to 99,145.68, 148,707.64 and 29,025.68
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Solution
The fourth proportional to 99,145.68, 148,707.64 and 29,025.68 is: 43,535.33
Step by Step Solution
- Step 1: Write the proportion equation
99,145.68 : 148,707.64 = 29,025.68 : x - Step 2: Convert to fraction form
99,145.68/148,707.64 = 29,025.68/x - Step 3: Cross multiply
99,145.68x = 148,707.64 × 29,025.68 - Step 4: Simplify right side
99,145.68x = 4,316,340,372.20 - Step 5: Solve for x
x = 4,316,340,372.20/99,145.68 - Step 6: Final answer
x = 43,535.33
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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.