Finding the Fourth Proportional to 134,779.80, 185,996.12 and 74,350.58
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Solution
The fourth proportional to 134,779.80, 185,996.12 and 74,350.58 is: 102,603.80
Step by Step Solution
- Step 1: Write the proportion equation
134,779.80 : 185,996.12 = 74,350.58 : x - Step 2: Convert to fraction form
134,779.80/185,996.12 = 74,350.58/x - Step 3: Cross multiply
134,779.80x = 185,996.12 × 74,350.58 - Step 4: Simplify right side
134,779.80x = 13,828,919,399.75 - Step 5: Solve for x
x = 13,828,919,399.75/134,779.80 - Step 6: Final answer
x = 102,603.80
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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.