Finding the Fourth Proportional to 151,898.48, 209,618.90 and 83,919.84
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Solution
The fourth proportional to 151,898.48, 209,618.90 and 83,919.84 is: 115,808.82
Step by Step Solution
- Step 1: Write the proportion equation
151,898.48 : 209,618.90 = 83,919.84 : x - Step 2: Convert to fraction form
151,898.48/209,618.90 = 83,919.84/x - Step 3: Cross multiply
151,898.48x = 209,618.90 × 83,919.84 - Step 4: Simplify right side
151,898.48x = 17,591,184,130.05 - Step 5: Solve for x
x = 17,591,184,130.05/151,898.48 - Step 6: Final answer
x = 115,808.82
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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.