Finding the Fourth Proportional to 135,077.99, 202,553.34 and 78,934.32
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Solution
The fourth proportional to 135,077.99, 202,553.34 and 78,934.32 is: 118,364.29
Step by Step Solution
- Step 1: Write the proportion equation
135,077.99 : 202,553.34 = 78,934.32 : x - Step 2: Convert to fraction form
135,077.99/202,553.34 = 78,934.32/x - Step 3: Cross multiply
135,077.99x = 202,553.34 × 78,934.32 - Step 4: Simplify right side
135,077.99x = 15,988,410,156.63 - Step 5: Solve for x
x = 15,988,410,156.63/135,077.99 - Step 6: Final answer
x = 118,364.29
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1.5x scale
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.