Finding the Fourth Proportional to 160,817.08, 221,854.80 and 100,402.69
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Solution
The fourth proportional to 160,817.08, 221,854.80 and 100,402.69 is: 138,510.28
Step by Step Solution
- Step 1: Write the proportion equation
160,817.08 : 221,854.80 = 100,402.69 : x - Step 2: Convert to fraction form
160,817.08/221,854.80 = 100,402.69/x - Step 3: Cross multiply
160,817.08x = 221,854.80 × 100,402.69 - Step 4: Simplify right side
160,817.08x = 22,274,818,709.41 - Step 5: Solve for x
x = 22,274,818,709.41/160,817.08 - Step 6: Final answer
x = 138,510.28
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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.