Finding the Fourth Proportional to 108,475.52, 149,711.16 and 65,457.23
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Solution
The fourth proportional to 108,475.52, 149,711.16 and 65,457.23 is: 90,339.99
Step by Step Solution
- Step 1: Write the proportion equation
108,475.52 : 149,711.16 = 65,457.23 : x - Step 2: Convert to fraction form
108,475.52/149,711.16 = 65,457.23/x - Step 3: Cross multiply
108,475.52x = 149,711.16 × 65,457.23 - Step 4: Simplify right side
108,475.52x = 9,799,677,085.13 - Step 5: Solve for x
x = 9,799,677,085.13/108,475.52 - Step 6: Final answer
x = 90,339.99
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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.