Finding the Fourth Proportional to 163,749.65, 245,624.48 and 45,420.99
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Solution
The fourth proportional to 163,749.65, 245,624.48 and 45,420.99 is: 68,131.49
Step by Step Solution
- Step 1: Write the proportion equation
163,749.65 : 245,624.48 = 45,420.99 : x - Step 2: Convert to fraction form
163,749.65/245,624.48 = 45,420.99/x - Step 3: Cross multiply
163,749.65x = 245,624.48 × 45,420.99 - Step 4: Simplify right side
163,749.65x = 11,156,507,663.90 - Step 5: Solve for x
x = 11,156,507,663.90/163,749.65 - Step 6: Final answer
x = 68,131.49
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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.