Finding the Fourth Proportional to 172,554.19, 258,792.40 and 67,318.99
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Solution
The fourth proportional to 172,554.19, 258,792.40 and 67,318.99 is: 100,963.31
Step by Step Solution
- Step 1: Write the proportion equation
172,554.19 : 258,792.40 = 67,318.99 : x - Step 2: Convert to fraction form
172,554.19/258,792.40 = 67,318.99/x - Step 3: Cross multiply
172,554.19x = 258,792.40 × 67,318.99 - Step 4: Simplify right side
172,554.19x = 17,421,642,987.68 - Step 5: Solve for x
x = 17,421,642,987.68/172,554.19 - Step 6: Final answer
x = 100,963.31
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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.