Finding the Fourth Proportional to 118,394.17, 163,323.27 and 80,155.09
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Solution
The fourth proportional to 118,394.17, 163,323.27 and 80,155.09 is: 110,572.94
Step by Step Solution
- Step 1: Write the proportion equation
118,394.17 : 163,323.27 = 80,155.09 : x - Step 2: Convert to fraction form
118,394.17/163,323.27 = 80,155.09/x - Step 3: Cross multiply
118,394.17x = 163,323.27 × 80,155.09 - Step 4: Simplify right side
118,394.17x = 13,091,191,405.94 - Step 5: Solve for x
x = 13,091,191,405.94/118,394.17 - Step 6: Final answer
x = 110,572.94
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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.