Finding the Fourth Proportional to 108,901.88, 163,358.97 and 38,781.20
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Solution
The fourth proportional to 108,901.88, 163,358.97 and 38,781.20 is: 58,173.99
Step by Step Solution
- Step 1: Write the proportion equation
108,901.88 : 163,358.97 = 38,781.20 : x - Step 2: Convert to fraction form
108,901.88/163,358.97 = 38,781.20/x - Step 3: Cross multiply
108,901.88x = 163,358.97 × 38,781.20 - Step 4: Simplify right side
108,901.88x = 6,335,256,070.57 - Step 5: Solve for x
x = 6,335,256,070.57/108,901.88 - Step 6: Final answer
x = 58,173.99
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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.