Finding the Fourth Proportional to 117,060.09, 161,543.34 and 63,345.09
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Solution
The fourth proportional to 117,060.09, 161,543.34 and 63,345.09 is: 87,416.45
Step by Step Solution
- Step 1: Write the proportion equation
117,060.09 : 161,543.34 = 63,345.09 : x - Step 2: Convert to fraction form
117,060.09/161,543.34 = 63,345.09/x - Step 3: Cross multiply
117,060.09x = 161,543.34 × 63,345.09 - Step 4: Simplify right side
117,060.09x = 10,232,977,411.20 - Step 5: Solve for x
x = 10,232,977,411.20/117,060.09 - Step 6: Final answer
x = 87,416.45
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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.