Finding the Fourth Proportional to 136,521.84, 188,298.36 and 121,226.88
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Solution
The fourth proportional to 136,521.84, 188,298.36 and 121,226.88 is: 167,202.72
Step by Step Solution
- Step 1: Write the proportion equation
136,521.84 : 188,298.36 = 121,226.88 : x - Step 2: Convert to fraction form
136,521.84/188,298.36 = 121,226.88/x - Step 3: Cross multiply
136,521.84x = 188,298.36 × 121,226.88 - Step 4: Simplify right side
136,521.84x = 22,826,822,691.92 - Step 5: Solve for x
x = 22,826,822,691.92/136,521.84 - Step 6: Final answer
x = 167,202.72
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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.