Finding the Fourth Proportional to 170,782.08, 235,688.40 and 99,184.56
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Solution
The fourth proportional to 170,782.08, 235,688.40 and 99,184.56 is: 136,879.99
Step by Step Solution
- Step 1: Write the proportion equation
170,782.08 : 235,688.40 = 99,184.56 : x - Step 2: Convert to fraction form
170,782.08/235,688.40 = 99,184.56/x - Step 3: Cross multiply
170,782.08x = 235,688.40 × 99,184.56 - Step 4: Simplify right side
170,782.08x = 23,376,650,251.10 - Step 5: Solve for x
x = 23,376,650,251.10/170,782.08 - Step 6: Final answer
x = 136,879.99
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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.