Finding the Fourth Proportional to 133,074.04, 183,642.24 and 76,485.28
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Solution
The fourth proportional to 133,074.04, 183,642.24 and 76,485.28 is: 105,549.72
Step by Step Solution
- Step 1: Write the proportion equation
133,074.04 : 183,642.24 = 76,485.28 : x - Step 2: Convert to fraction form
133,074.04/183,642.24 = 76,485.28/x - Step 3: Cross multiply
133,074.04x = 183,642.24 × 76,485.28 - Step 4: Simplify right side
133,074.04x = 14,045,928,146.23 - Step 5: Solve for x
x = 14,045,928,146.23/133,074.04 - Step 6: Final answer
x = 105,549.72
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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.