Finding the Fourth Proportional to 134,647.10, 185,814.30 and 74,220.08
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Solution
The fourth proportional to 134,647.10, 185,814.30 and 74,220.08 is: 102,424.43
Step by Step Solution
- Step 1: Write the proportion equation
134,647.10 : 185,814.30 = 74,220.08 : x - Step 2: Convert to fraction form
134,647.10/185,814.30 = 74,220.08/x - Step 3: Cross multiply
134,647.10x = 185,814.30 × 74,220.08 - Step 4: Simplify right side
134,647.10x = 13,791,152,211.14 - Step 5: Solve for x
x = 13,791,152,211.14/134,647.10 - Step 6: Final answer
x = 102,424.43
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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.