Finding the Fourth Proportional to 159,242.42, 219,729.45 and 91,246.31
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Solution
The fourth proportional to 159,242.42, 219,729.45 and 91,246.31 is: 125,905.53
Step by Step Solution
- Step 1: Write the proportion equation
159,242.42 : 219,729.45 = 91,246.31 : x - Step 2: Convert to fraction form
159,242.42/219,729.45 = 91,246.31/x - Step 3: Cross multiply
159,242.42x = 219,729.45 × 91,246.31 - Step 4: Simplify right side
159,242.42x = 20,049,500,412.18 - Step 5: Solve for x
x = 20,049,500,412.18/159,242.42 - Step 6: Final answer
x = 125,905.53
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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.