Finding the Fourth Proportional to 122,214.44, 168,618.79 and 76,937.62
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Solution
The fourth proportional to 122,214.44, 168,618.79 and 76,937.62 is: 106,150.54
Step by Step Solution
- Step 1: Write the proportion equation
122,214.44 : 168,618.79 = 76,937.62 : x - Step 2: Convert to fraction form
122,214.44/168,618.79 = 76,937.62/x - Step 3: Cross multiply
122,214.44x = 168,618.79 × 76,937.62 - Step 4: Simplify right side
122,214.44x = 12,973,128,389.88 - Step 5: Solve for x
x = 12,973,128,389.88/122,214.44 - Step 6: Final answer
x = 106,150.54
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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.