Finding the Fourth Proportional to 133,865.68, 184,721.16 and 77,295.28
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Solution
The fourth proportional to 133,865.68, 184,721.16 and 77,295.28 is: 106,659.70
Step by Step Solution
- Step 1: Write the proportion equation
133,865.68 : 184,721.16 = 77,295.28 : x - Step 2: Convert to fraction form
133,865.68/184,721.16 = 77,295.28/x - Step 3: Cross multiply
133,865.68x = 184,721.16 × 77,295.28 - Step 4: Simplify right side
133,865.68x = 14,278,073,784.12 - Step 5: Solve for x
x = 14,278,073,784.12/133,865.68 - Step 6: Final answer
x = 106,659.70
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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.