Finding the Fourth Proportional to 108,217.64, 149,339.88 and 60,470.99
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Solution
The fourth proportional to 108,217.64, 149,339.88 and 60,470.99 is: 83,449.71
Step by Step Solution
- Step 1: Write the proportion equation
108,217.64 : 149,339.88 = 60,470.99 : x - Step 2: Convert to fraction form
108,217.64/149,339.88 = 60,470.99/x - Step 3: Cross multiply
108,217.64x = 149,339.88 × 60,470.99 - Step 4: Simplify right side
108,217.64x = 9,030,730,390.08 - Step 5: Solve for x
x = 9,030,730,390.08/108,217.64 - Step 6: Final answer
x = 83,449.71
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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.