Finding the Fourth Proportional to 159,921.80, 239,421.90 and 97,713.80
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Solution
The fourth proportional to 159,921.80, 239,421.90 and 97,713.80 is: 146,289.15
Step by Step Solution
- Step 1: Write the proportion equation
159,921.80 : 239,421.90 = 97,713.80 : x - Step 2: Convert to fraction form
159,921.80/239,421.90 = 97,713.80/x - Step 3: Cross multiply
159,921.80x = 239,421.90 × 97,713.80 - Step 4: Simplify right side
159,921.80x = 23,394,823,652.22 - Step 5: Solve for x
x = 23,394,823,652.22/159,921.80 - Step 6: Final answer
x = 146,289.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.