Finding the Fourth Proportional to 122,462.77, 168,987.07 and 68,737.30
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Solution
The fourth proportional to 122,462.77, 168,987.07 and 68,737.30 is: 94,850.99
Step by Step Solution
- Step 1: Write the proportion equation
122,462.77 : 168,987.07 = 68,737.30 : x - Step 2: Convert to fraction form
122,462.77/168,987.07 = 68,737.30/x - Step 3: Cross multiply
122,462.77x = 168,987.07 × 68,737.30 - Step 4: Simplify right side
122,462.77x = 11,615,714,926.71 - Step 5: Solve for x
x = 11,615,714,926.71/122,462.77 - Step 6: Final answer
x = 94,850.99
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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.