Finding the Fourth Proportional to 110,615.13, 152,588.99 and 91,381.14
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Solution
The fourth proportional to 110,615.13, 152,588.99 and 91,381.14 is: 126,056.49
Step by Step Solution
- Step 1: Write the proportion equation
110,615.13 : 152,588.99 = 91,381.14 : x - Step 2: Convert to fraction form
110,615.13/152,588.99 = 91,381.14/x - Step 3: Cross multiply
110,615.13x = 152,588.99 × 91,381.14 - Step 4: Simplify right side
110,615.13x = 13,943,755,400.74 - Step 5: Solve for x
x = 13,943,755,400.74/110,615.13 - Step 6: Final answer
x = 126,056.49
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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.