Finding the Fourth Proportional to 110,949.12, 153,125.64 and 63,206.88
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Solution
The fourth proportional to 110,949.12, 153,125.64 and 63,206.88 is: 87,234.53
Step by Step Solution
- Step 1: Write the proportion equation
110,949.12 : 153,125.64 = 63,206.88 : x - Step 2: Convert to fraction form
110,949.12/153,125.64 = 63,206.88/x - Step 3: Cross multiply
110,949.12x = 153,125.64 × 63,206.88 - Step 4: Simplify right side
110,949.12x = 9,678,593,952.40 - Step 5: Solve for x
x = 9,678,593,952.40/110,949.12 - Step 6: Final answer
x = 87,234.53
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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.