Finding the Fourth Proportional to 106,722.11, 147,282.18 and 61,406.98
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Solution
The fourth proportional to 106,722.11, 147,282.18 and 61,406.98 is: 84,744.89
Step by Step Solution
- Step 1: Write the proportion equation
106,722.11 : 147,282.18 = 61,406.98 : x - Step 2: Convert to fraction form
106,722.11/147,282.18 = 61,406.98/x - Step 3: Cross multiply
106,722.11x = 147,282.18 × 61,406.98 - Step 4: Simplify right side
106,722.11x = 9,044,153,145.21 - Step 5: Solve for x
x = 9,044,153,145.21/106,722.11 - Step 6: Final answer
x = 84,744.89
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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.