Finding the Fourth Proportional to 124,107.06, 171,280.40 and 73,135.68
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Solution
The fourth proportional to 124,107.06, 171,280.40 and 73,135.68 is: 100,934.70
Step by Step Solution
- Step 1: Write the proportion equation
124,107.06 : 171,280.40 = 73,135.68 : x - Step 2: Convert to fraction form
124,107.06/171,280.40 = 73,135.68/x - Step 3: Cross multiply
124,107.06x = 171,280.40 × 73,135.68 - Step 4: Simplify right side
124,107.06x = 12,526,708,524.67 - Step 5: Solve for x
x = 12,526,708,524.67/124,107.06 - Step 6: Final answer
x = 100,934.70
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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.