Finding the Fourth Proportional to 117,122.05, 161,628.36 and 63,407.02
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Solution
The fourth proportional to 117,122.05, 161,628.36 and 63,407.02 is: 87,501.65
Step by Step Solution
- Step 1: Write the proportion equation
117,122.05 : 161,628.36 = 63,407.02 : x - Step 2: Convert to fraction form
117,122.05/161,628.36 = 63,407.02/x - Step 3: Cross multiply
117,122.05x = 161,628.36 × 63,407.02 - Step 4: Simplify right side
117,122.05x = 10,248,372,655.09 - Step 5: Solve for x
x = 10,248,372,655.09/117,122.05 - Step 6: Final answer
x = 87,501.65
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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.