Finding the Fourth Proportional to 131,307.04, 181,207.84 and 74,722.08
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Solution
The fourth proportional to 131,307.04, 181,207.84 and 74,722.08 is: 103,118.82
Step by Step Solution
- Step 1: Write the proportion equation
131,307.04 : 181,207.84 = 74,722.08 : x - Step 2: Convert to fraction form
131,307.04/181,207.84 = 74,722.08/x - Step 3: Cross multiply
131,307.04x = 181,207.84 × 74,722.08 - Step 4: Simplify right side
131,307.04x = 13,540,226,717.11 - Step 5: Solve for x
x = 13,540,226,717.11/131,307.04 - Step 6: Final answer
x = 103,118.82
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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.