Finding the Fourth Proportional to 98,903.13, 136,486.15 and 53,582.26
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Solution
The fourth proportional to 98,903.13, 136,486.15 and 53,582.26 is: 73,943.43
Step by Step Solution
- Step 1: Write the proportion equation
98,903.13 : 136,486.15 = 53,582.26 : x - Step 2: Convert to fraction form
98,903.13/136,486.15 = 53,582.26/x - Step 3: Cross multiply
98,903.13x = 136,486.15 × 53,582.26 - Step 4: Simplify right side
98,903.13x = 7,313,236,156.44 - Step 5: Solve for x
x = 7,313,236,156.44/98,903.13 - Step 6: Final answer
x = 73,943.43
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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.