Finding the Fourth Proportional to 160,208.84, 221,089.34 and 87,612.05
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Solution
The fourth proportional to 160,208.84, 221,089.34 and 87,612.05 is: 120,905.26
Step by Step Solution
- Step 1: Write the proportion equation
160,208.84 : 221,089.34 = 87,612.05 : x - Step 2: Convert to fraction form
160,208.84/221,089.34 = 87,612.05/x - Step 3: Cross multiply
160,208.84x = 221,089.34 × 87,612.05 - Step 4: Simplify right side
160,208.84x = 19,370,091,082.30 - Step 5: Solve for x
x = 19,370,091,082.30/160,208.84 - Step 6: Final answer
x = 120,905.26
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1.5x scale
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.