Finding the Fourth Proportional to 109,023.60, 163,554.84 and 30,136.08
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Solution
The fourth proportional to 109,023.60, 163,554.84 and 30,136.08 is: 45,209.49
Step by Step Solution
- Step 1: Write the proportion equation
109,023.60 : 163,554.84 = 30,136.08 : x - Step 2: Convert to fraction form
109,023.60/163,554.84 = 30,136.08/x - Step 3: Cross multiply
109,023.60x = 163,554.84 × 30,136.08 - Step 4: Simplify right side
109,023.60x = 4,928,901,742.63 - Step 5: Solve for x
x = 4,928,901,742.63/109,023.60 - Step 6: Final answer
x = 45,209.49
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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.