Finding the Fourth Proportional to 129,518.10, 194,288.08 and 36,023.84
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Solution
The fourth proportional to 129,518.10, 194,288.08 and 36,023.84 is: 54,038.80
Step by Step Solution
- Step 1: Write the proportion equation
129,518.10 : 194,288.08 = 36,023.84 : x - Step 2: Convert to fraction form
129,518.10/194,288.08 = 36,023.84/x - Step 3: Cross multiply
129,518.10x = 194,288.08 × 36,023.84 - Step 4: Simplify right side
129,518.10x = 6,999,002,707.83 - Step 5: Solve for x
x = 6,999,002,707.83/129,518.10 - Step 6: Final answer
x = 54,038.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.