Finding the Fourth Proportional to 100,566.98, 138,767.02 and 58,117.32
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Solution
The fourth proportional to 100,566.98, 138,767.02 and 58,117.32 is: 80,192.99
Step by Step Solution
- Step 1: Write the proportion equation
100,566.98 : 138,767.02 = 58,117.32 : x - Step 2: Convert to fraction form
100,566.98/138,767.02 = 58,117.32/x - Step 3: Cross multiply
100,566.98x = 138,767.02 × 58,117.32 - Step 4: Simplify right side
100,566.98x = 8,064,767,306.79 - Step 5: Solve for x
x = 8,064,767,306.79/100,566.98 - Step 6: Final answer
x = 80,192.99
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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.