Finding the Fourth Proportional to 134,780.68, 185,996.81 and 74,355.08
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Solution
The fourth proportional to 134,780.68, 185,996.81 and 74,355.08 is: 102,609.72
Step by Step Solution
- Step 1: Write the proportion equation
134,780.68 : 185,996.81 = 74,355.08 : x - Step 2: Convert to fraction form
134,780.68/185,996.81 = 74,355.08/x - Step 3: Cross multiply
134,780.68x = 185,996.81 × 74,355.08 - Step 4: Simplify right side
134,780.68x = 13,829,807,687.29 - Step 5: Solve for x
x = 13,829,807,687.29/134,780.68 - Step 6: Final answer
x = 102,609.72
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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.