Finding the Fourth Proportional to 122,398.36, 183,649.77 and 69,130.33
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Solution
The fourth proportional to 122,398.36, 183,649.77 and 69,130.33 is: 103,724.99
Step by Step Solution
- Step 1: Write the proportion equation
122,398.36 : 183,649.77 = 69,130.33 : x - Step 2: Convert to fraction form
122,398.36/183,649.77 = 69,130.33/x - Step 3: Cross multiply
122,398.36x = 183,649.77 × 69,130.33 - Step 4: Simplify right side
122,398.36x = 12,695,768,286.28 - Step 5: Solve for x
x = 12,695,768,286.28/122,398.36 - Step 6: Final answer
x = 103,724.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.