Finding the Fourth Proportional to 150,653.47, 207,892.83 and 86,129.68
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Solution
The fourth proportional to 150,653.47, 207,892.83 and 86,129.68 is: 118,853.84
Step by Step Solution
- Step 1: Write the proportion equation
150,653.47 : 207,892.83 = 86,129.68 : x - Step 2: Convert to fraction form
150,653.47/207,892.83 = 86,129.68/x - Step 3: Cross multiply
150,653.47x = 207,892.83 × 86,129.68 - Step 4: Simplify right side
150,653.47x = 17,905,742,922.19 - Step 5: Solve for x
x = 17,905,742,922.19/150,653.47 - Step 6: Final answer
x = 118,853.84
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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.