Finding the Fourth Proportional to 119,005.99, 178,421.49 and 56,720.23
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Solution
The fourth proportional to 119,005.99, 178,421.49 and 56,720.23 is: 85,038.64
Step by Step Solution
- Step 1: Write the proportion equation
119,005.99 : 178,421.49 = 56,720.23 : x - Step 2: Convert to fraction form
119,005.99/178,421.49 = 56,720.23/x - Step 3: Cross multiply
119,005.99x = 178,421.49 × 56,720.23 - Step 4: Simplify right side
119,005.99x = 10,120,107,949.74 - Step 5: Solve for x
x = 10,120,107,949.74/119,005.99 - Step 6: Final answer
x = 85,038.64
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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.