Finding the Fourth Proportional to 135,853.29, 187,499.88 and 79,264.53
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Solution
The fourth proportional to 135,853.29, 187,499.88 and 79,264.53 is: 109,398.09
Step by Step Solution
- Step 1: Write the proportion equation
135,853.29 : 187,499.88 = 79,264.53 : x - Step 2: Convert to fraction form
135,853.29/187,499.88 = 79,264.53/x - Step 3: Cross multiply
135,853.29x = 187,499.88 × 79,264.53 - Step 4: Simplify right side
135,853.29x = 14,862,089,863.26 - Step 5: Solve for x
x = 14,862,089,863.26/135,853.29 - Step 6: Final answer
x = 109,398.09
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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.