Finding the Fourth Proportional to 99,987.41, 149,981.11 and 29,866.72
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Solution
The fourth proportional to 99,987.41, 149,981.11 and 29,866.72 is: 44,800.08
Step by Step Solution
- Step 1: Write the proportion equation
99,987.41 : 149,981.11 = 29,866.72 : x - Step 2: Convert to fraction form
99,987.41/149,981.11 = 29,866.72/x - Step 3: Cross multiply
99,987.41x = 149,981.11 × 29,866.72 - Step 4: Simplify right side
99,987.41x = 4,479,443,817.66 - Step 5: Solve for x
x = 4,479,443,817.66/99,987.41 - Step 6: Final answer
x = 44,800.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.