Finding the Fourth Proportional to 106,909.22, 147,532.84 and 61,587.07
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Solution
The fourth proportional to 106,909.22, 147,532.84 and 61,587.07 is: 84,989.07
Step by Step Solution
- Step 1: Write the proportion equation
106,909.22 : 147,532.84 = 61,587.07 : x - Step 2: Convert to fraction form
106,909.22/147,532.84 = 61,587.07/x - Step 3: Cross multiply
106,909.22x = 147,532.84 × 61,587.07 - Step 4: Simplify right side
106,909.22x = 9,086,114,760.68 - Step 5: Solve for x
x = 9,086,114,760.68/106,909.22 - Step 6: Final answer
x = 84,989.07
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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.