Finding the Fourth Proportional to 134,715.35, 185,902.93 and 74,288.54
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Solution
The fourth proportional to 134,715.35, 185,902.93 and 74,288.54 is: 102,515.84
Step by Step Solution
- Step 1: Write the proportion equation
134,715.35 : 185,902.93 = 74,288.54 : x - Step 2: Convert to fraction form
134,715.35/185,902.93 = 74,288.54/x - Step 3: Cross multiply
134,715.35x = 185,902.93 × 74,288.54 - Step 4: Simplify right side
134,715.35x = 13,810,457,809.04 - Step 5: Solve for x
x = 13,810,457,809.04/134,715.35 - Step 6: Final answer
x = 102,515.84
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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.