Finding the Fourth Proportional to 155,638.84, 233,531.16 and 76,710.04
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Solution
The fourth proportional to 155,638.84, 233,531.16 and 76,710.04 is: 115,100.99
Step by Step Solution
- Step 1: Write the proportion equation
155,638.84 : 233,531.16 = 76,710.04 : x - Step 2: Convert to fraction form
155,638.84/233,531.16 = 76,710.04/x - Step 3: Cross multiply
155,638.84x = 233,531.16 × 76,710.04 - Step 4: Simplify right side
155,638.84x = 17,914,184,624.85 - Step 5: Solve for x
x = 17,914,184,624.85/155,638.84 - Step 6: Final answer
x = 115,100.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.