Finding the Fourth Proportional to 94,980.09, 130,386.16 and 81,527.99
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Solution
The fourth proportional to 94,980.09, 130,386.16 and 81,527.99 is: 111,919.47
Step by Step Solution
- Step 1: Write the proportion equation
94,980.09 : 130,386.16 = 81,527.99 : x - Step 2: Convert to fraction form
94,980.09/130,386.16 = 81,527.99/x - Step 3: Cross multiply
94,980.09x = 130,386.16 × 81,527.99 - Step 4: Simplify right side
94,980.09x = 10,630,121,548.62 - Step 5: Solve for x
x = 10,630,121,548.62/94,980.09 - Step 6: Final answer
x = 111,919.47
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.