Finding the Fourth Proportional to 128,800.48, 193,178.84 and 34,031.70
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Solution
The fourth proportional to 128,800.48, 193,178.84 and 34,031.70 is: 51,041.77
Step by Step Solution
- Step 1: Write the proportion equation
128,800.48 : 193,178.84 = 34,031.70 : x - Step 2: Convert to fraction form
128,800.48/193,178.84 = 34,031.70/x - Step 3: Cross multiply
128,800.48x = 193,178.84 × 34,031.70 - Step 4: Simplify right side
128,800.48x = 6,574,204,329.23 - Step 5: Solve for x
x = 6,574,204,329.23/128,800.48 - Step 6: Final answer
x = 51,041.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.