Finding the Fourth Proportional to 105,261.13, 145,357.37 and 67,600.99
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Solution
The fourth proportional to 105,261.13, 145,357.37 and 67,600.99 is: 93,351.67
Step by Step Solution
- Step 1: Write the proportion equation
105,261.13 : 145,357.37 = 67,600.99 : x - Step 2: Convert to fraction form
105,261.13/145,357.37 = 67,600.99/x - Step 3: Cross multiply
105,261.13x = 145,357.37 × 67,600.99 - Step 4: Simplify right side
105,261.13x = 9,826,302,115.80 - Step 5: Solve for x
x = 9,826,302,115.80/105,261.13 - Step 6: Final answer
x = 93,351.67
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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.