Finding the Fourth Proportional to 129,355.10, 194,032.65 and 97,862.30
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Solution
The fourth proportional to 129,355.10, 194,032.65 and 97,862.30 is: 146,793.45
Step by Step Solution
- Step 1: Write the proportion equation
129,355.10 : 194,032.65 = 97,862.30 : x - Step 2: Convert to fraction form
129,355.10/194,032.65 = 97,862.30/x - Step 3: Cross multiply
129,355.10x = 194,032.65 × 97,862.30 - Step 4: Simplify right side
129,355.10x = 18,988,481,404.10 - Step 5: Solve for x
x = 18,988,481,404.10/129,355.10 - Step 6: Final answer
x = 146,793.45
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1.5x scale
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.