Finding the Fourth Proportional to 99,117.30, 136,783.18 and 53,795.82
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Solution
The fourth proportional to 99,117.30, 136,783.18 and 53,795.82 is: 74,238.94
Step by Step Solution
- Step 1: Write the proportion equation
99,117.30 : 136,783.18 = 53,795.82 : x - Step 2: Convert to fraction form
99,117.30/136,783.18 = 53,795.82/x - Step 3: Cross multiply
99,117.30x = 136,783.18 × 53,795.82 - Step 4: Simplify right side
99,117.30x = 7,358,363,330.31 - Step 5: Solve for x
x = 7,358,363,330.31/99,117.30 - Step 6: Final answer
x = 74,238.94
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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.