Finding the Fourth Proportional to 118,827.47, 163,920.58 and 80,574.08
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Solution
The fourth proportional to 118,827.47, 163,920.58 and 80,574.08 is: 111,150.63
Step by Step Solution
- Step 1: Write the proportion equation
118,827.47 : 163,920.58 = 80,574.08 : x - Step 2: Convert to fraction form
118,827.47/163,920.58 = 80,574.08/x - Step 3: Cross multiply
118,827.47x = 163,920.58 × 80,574.08 - Step 4: Simplify right side
118,827.47x = 13,207,748,905.53 - Step 5: Solve for x
x = 13,207,748,905.53/118,827.47 - Step 6: Final answer
x = 111,150.63
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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.