Finding the Fourth Proportional to 149,065.10, 205,691.12 and 100,772.07
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Solution
The fourth proportional to 149,065.10, 205,691.12 and 100,772.07 is: 139,052.80
Step by Step Solution
- Step 1: Write the proportion equation
149,065.10 : 205,691.12 = 100,772.07 : x - Step 2: Convert to fraction form
149,065.10/205,691.12 = 100,772.07/x - Step 3: Cross multiply
149,065.10x = 205,691.12 × 100,772.07 - Step 4: Simplify right side
149,065.10x = 20,727,919,943.02 - Step 5: Solve for x
x = 20,727,919,943.02/149,065.10 - Step 6: Final answer
x = 139,052.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.