Finding the Fourth Proportional to 117,353.51, 161,947.35 and 63,637.14
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Solution
The fourth proportional to 117,353.51, 161,947.35 and 63,637.14 is: 87,818.99
Step by Step Solution
- Step 1: Write the proportion equation
117,353.51 : 161,947.35 = 63,637.14 : x - Step 2: Convert to fraction form
117,353.51/161,947.35 = 63,637.14/x - Step 3: Cross multiply
117,353.51x = 161,947.35 × 63,637.14 - Step 4: Simplify right side
117,353.51x = 10,305,866,791.88 - Step 5: Solve for x
x = 10,305,866,791.88/117,353.51 - Step 6: Final answer
x = 87,818.99
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1.5x scale
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.