Finding the Fourth Proportional to 98,911.14, 136,497.19 and 53,590.28
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Solution
The fourth proportional to 98,911.14, 136,497.19 and 53,590.28 is: 73,954.48
Step by Step Solution
- Step 1: Write the proportion equation
98,911.14 : 136,497.19 = 53,590.28 : x - Step 2: Convert to fraction form
98,911.14/136,497.19 = 53,590.28/x - Step 3: Cross multiply
98,911.14x = 136,497.19 × 53,590.28 - Step 4: Simplify right side
98,911.14x = 7,314,922,156.09 - Step 5: Solve for x
x = 7,314,922,156.09/98,911.14 - Step 6: Final answer
x = 73,954.48
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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.