Finding the Fourth Proportional to 98,189.20, 135,501.99 and 55,748.63
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Solution
The fourth proportional to 98,189.20, 135,501.99 and 55,748.63 is: 76,933.62
Step by Step Solution
- Step 1: Write the proportion equation
98,189.20 : 135,501.99 = 55,748.63 : x - Step 2: Convert to fraction form
98,189.20/135,501.99 = 55,748.63/x - Step 3: Cross multiply
98,189.20x = 135,501.99 × 55,748.63 - Step 4: Simplify right side
98,189.20x = 7,554,050,304.77 - Step 5: Solve for x
x = 7,554,050,304.77/98,189.20 - Step 6: Final answer
x = 76,933.62
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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.