Finding the Fourth Proportional to 122,723.99, 169,360.12 and 69,008.54
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Solution
The fourth proportional to 122,723.99, 169,360.12 and 69,008.54 is: 95,232.35
Step by Step Solution
- Step 1: Write the proportion equation
122,723.99 : 169,360.12 = 69,008.54 : x - Step 2: Convert to fraction form
122,723.99/169,360.12 = 69,008.54/x - Step 3: Cross multiply
122,723.99x = 169,360.12 × 69,008.54 - Step 4: Simplify right side
122,723.99x = 11,687,294,807.54 - Step 5: Solve for x
x = 11,687,294,807.54/122,723.99 - Step 6: Final answer
x = 95,232.35
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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.