Finding the Fourth Proportional to 122,793.90, 169,465.40 and 69,075.70
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Solution
The fourth proportional to 122,793.90, 169,465.40 and 69,075.70 is: 95,329.99
Step by Step Solution
- Step 1: Write the proportion equation
122,793.90 : 169,465.40 = 69,075.70 : x - Step 2: Convert to fraction form
122,793.90/169,465.40 = 69,075.70/x - Step 3: Cross multiply
122,793.90x = 169,465.40 × 69,075.70 - Step 4: Simplify right side
122,793.90x = 11,705,941,130.78 - Step 5: Solve for x
x = 11,705,941,130.78/122,793.90 - Step 6: Final answer
x = 95,329.99
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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.