Finding the Fourth Proportional to 128,184.26, 176,902.18 and 70,823.30
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Solution
The fourth proportional to 128,184.26, 176,902.18 and 70,823.30 is: 97,740.52
Step by Step Solution
- Step 1: Write the proportion equation
128,184.26 : 176,902.18 = 70,823.30 : x - Step 2: Convert to fraction form
128,184.26/176,902.18 = 70,823.30/x - Step 3: Cross multiply
128,184.26x = 176,902.18 × 70,823.30 - Step 4: Simplify right side
128,184.26x = 12,528,795,103.22 - Step 5: Solve for x
x = 12,528,795,103.22/128,184.26 - Step 6: Final answer
x = 97,740.52
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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.