Finding the Fourth Proportional to 134,661.90, 185,910.75 and 89,400.99
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Solution
The fourth proportional to 134,661.90, 185,910.75 and 89,400.99 is: 123,424.70
Step by Step Solution
- Step 1: Write the proportion equation
134,661.90 : 185,910.75 = 89,400.99 : x - Step 2: Convert to fraction form
134,661.90/185,910.75 = 89,400.99/x - Step 3: Cross multiply
134,661.90x = 185,910.75 × 89,400.99 - Step 4: Simplify right side
134,661.90x = 16,620,605,101.64 - Step 5: Solve for x
x = 16,620,605,101.64/134,661.90 - Step 6: Final answer
x = 123,424.70
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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.