Finding the Fourth Proportional to 122,173.84, 168,499.93 and 85,995.05
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Solution
The fourth proportional to 122,173.84, 168,499.93 and 85,995.05 is: 118,602.80
Step by Step Solution
- Step 1: Write the proportion equation
122,173.84 : 168,499.93 = 85,995.05 : x - Step 2: Convert to fraction form
122,173.84/168,499.93 = 85,995.05/x - Step 3: Cross multiply
122,173.84x = 168,499.93 × 85,995.05 - Step 4: Simplify right side
122,173.84x = 14,490,158,632.87 - Step 5: Solve for x
x = 14,490,158,632.87/122,173.84 - Step 6: Final answer
x = 118,602.80
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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.