Finding the Fourth Proportional to 115,974.05, 160,044.21 and 70,652.02
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Solution
The fourth proportional to 115,974.05, 160,044.21 and 70,652.02 is: 97,499.80
Step by Step Solution
- Step 1: Write the proportion equation
115,974.05 : 160,044.21 = 70,652.02 : x - Step 2: Convert to fraction form
115,974.05/160,044.21 = 70,652.02/x - Step 3: Cross multiply
115,974.05x = 160,044.21 × 70,652.02 - Step 4: Simplify right side
115,974.05x = 11,307,446,725.80 - Step 5: Solve for x
x = 11,307,446,725.80/115,974.05 - Step 6: Final answer
x = 97,499.80
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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.