Finding the Fourth Proportional to 133,305.36, 183,981.42 and 76,705.80
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Solution
The fourth proportional to 133,305.36, 183,981.42 and 76,705.80 is: 105,865.53
Step by Step Solution
- Step 1: Write the proportion equation
133,305.36 : 183,981.42 = 76,705.80 : x - Step 2: Convert to fraction form
133,305.36/183,981.42 = 76,705.80/x - Step 3: Cross multiply
133,305.36x = 183,981.42 × 76,705.80 - Step 4: Simplify right side
133,305.36x = 14,112,442,006.24 - Step 5: Solve for x
x = 14,112,442,006.24/133,305.36 - Step 6: Final answer
x = 105,865.53
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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.