Finding the Fourth Proportional to 98,515.13, 135,954.14 and 53,803.13
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Solution
The fourth proportional to 98,515.13, 135,954.14 and 53,803.13 is: 74,250.09
Step by Step Solution
- Step 1: Write the proportion equation
98,515.13 : 135,954.14 = 53,803.13 : x - Step 2: Convert to fraction form
98,515.13/135,954.14 = 53,803.13/x - Step 3: Cross multiply
98,515.13x = 135,954.14 × 53,803.13 - Step 4: Simplify right side
98,515.13x = 7,314,757,319.67 - Step 5: Solve for x
x = 7,314,757,319.67/98,515.13 - Step 6: Final answer
x = 74,250.09
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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.