Finding the Fourth Proportional to 133,005.28, 183,551.70 and 72,579.23
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Solution
The fourth proportional to 133,005.28, 183,551.70 and 72,579.23 is: 100,161.75
Step by Step Solution
- Step 1: Write the proportion equation
133,005.28 : 183,551.70 = 72,579.23 : x - Step 2: Convert to fraction form
133,005.28/183,551.70 = 72,579.23/x - Step 3: Cross multiply
133,005.28x = 183,551.70 × 72,579.23 - Step 4: Simplify right side
133,005.28x = 13,322,041,051.19 - Step 5: Solve for x
x = 13,322,041,051.19/133,005.28 - Step 6: Final answer
x = 100,161.75
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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.