Finding the Fourth Proportional to 163,749.80, 245,624.68 and 45,421.14
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Solution
The fourth proportional to 163,749.80, 245,624.68 and 45,421.14 is: 68,131.70
Step by Step Solution
- Step 1: Write the proportion equation
163,749.80 : 245,624.68 = 45,421.14 : x - Step 2: Convert to fraction form
163,749.80/245,624.68 = 45,421.14/x - Step 3: Cross multiply
163,749.80x = 245,624.68 × 45,421.14 - Step 4: Simplify right side
163,749.80x = 11,156,552,977.74 - Step 5: Solve for x
x = 11,156,552,977.74/163,749.80 - Step 6: Final answer
x = 68,131.70
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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.