Finding the Fourth Proportional to 126,002.07, 173,643.61 and 90,129.80
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Solution
The fourth proportional to 126,002.07, 173,643.61 and 90,129.80 is: 124,207.99
Step by Step Solution
- Step 1: Write the proportion equation
126,002.07 : 173,643.61 = 90,129.80 : x - Step 2: Convert to fraction form
126,002.07/173,643.61 = 90,129.80/x - Step 3: Cross multiply
126,002.07x = 173,643.61 × 90,129.80 - Step 4: Simplify right side
126,002.07x = 15,650,463,840.58 - Step 5: Solve for x
x = 15,650,463,840.58/126,002.07 - Step 6: Final answer
x = 124,207.99
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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.