Finding the Fourth Proportional to 133,048.99, 183,601.11 and 72,618.13
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Solution
The fourth proportional to 133,048.99, 183,601.11 and 72,618.13 is: 100,209.47
Step by Step Solution
- Step 1: Write the proportion equation
133,048.99 : 183,601.11 = 72,618.13 : x - Step 2: Convert to fraction form
133,048.99/183,601.11 = 72,618.13/x - Step 3: Cross multiply
133,048.99x = 183,601.11 × 72,618.13 - Step 4: Simplify right side
133,048.99x = 13,332,769,274.12 - Step 5: Solve for x
x = 13,332,769,274.12/133,048.99 - Step 6: Final answer
x = 100,209.47
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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.