Finding the Fourth Proportional to 134,855.08, 202,220.02 and 78,711.40
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Solution
The fourth proportional to 134,855.08, 202,220.02 and 78,711.40 is: 118,030.56
Step by Step Solution
- Step 1: Write the proportion equation
134,855.08 : 202,220.02 = 78,711.40 : x - Step 2: Convert to fraction form
134,855.08/202,220.02 = 78,711.40/x - Step 3: Cross multiply
134,855.08x = 202,220.02 × 78,711.40 - Step 4: Simplify right side
134,855.08x = 15,917,020,882.23 - Step 5: Solve for x
x = 15,917,020,882.23/134,855.08 - Step 6: Final answer
x = 118,030.56
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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.