Finding the Fourth Proportional to 133,027.47, 183,581.79 and 72,601.99
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Solution
The fourth proportional to 133,027.47, 183,581.79 and 72,601.99 is: 100,192.86
Step by Step Solution
- Step 1: Write the proportion equation
133,027.47 : 183,581.79 = 72,601.99 : x - Step 2: Convert to fraction form
133,027.47/183,581.79 = 72,601.99/x - Step 3: Cross multiply
133,027.47x = 183,581.79 × 72,601.99 - Step 4: Simplify right side
133,027.47x = 13,328,403,281.76 - Step 5: Solve for x
x = 13,328,403,281.76/133,027.47 - Step 6: Final answer
x = 100,192.86
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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.