Finding the Fourth Proportional to 98,944.09, 136,536.10 and 63,130.14
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Solution
The fourth proportional to 98,944.09, 136,536.10 and 63,130.14 is: 87,115.29
Step by Step Solution
- Step 1: Write the proportion equation
98,944.09 : 136,536.10 = 63,130.14 : x - Step 2: Convert to fraction form
98,944.09/136,536.10 = 63,130.14/x - Step 3: Cross multiply
98,944.09x = 136,536.10 × 63,130.14 - Step 4: Simplify right side
98,944.09x = 8,619,542,950.23 - Step 5: Solve for x
x = 8,619,542,950.23/98,944.09 - Step 6: Final answer
x = 87,115.29
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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.