Finding the Fourth Proportional to 124,506.62, 172,006.50 and 81,588.09
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Solution
The fourth proportional to 124,506.62, 172,006.50 and 81,588.09 is: 112,714.34
Step by Step Solution
- Step 1: Write the proportion equation
124,506.62 : 172,006.50 = 81,588.09 : x - Step 2: Convert to fraction form
124,506.62/172,006.50 = 81,588.09/x - Step 3: Cross multiply
124,506.62x = 172,006.50 × 81,588.09 - Step 4: Simplify right side
124,506.62x = 14,033,681,802.59 - Step 5: Solve for x
x = 14,033,681,802.59/124,506.62 - Step 6: Final answer
x = 112,714.34
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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.