Finding the Fourth Proportional to 129,329.30, 193,937.40 and 65,248.02
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Solution
The fourth proportional to 129,329.30, 193,937.40 and 65,248.02 is: 97,843.50
Step by Step Solution
- Step 1: Write the proportion equation
129,329.30 : 193,937.40 = 65,248.02 : x - Step 2: Convert to fraction form
129,329.30/193,937.40 = 65,248.02/x - Step 3: Cross multiply
129,329.30x = 193,937.40 × 65,248.02 - Step 4: Simplify right side
129,329.30x = 12,654,031,353.95 - Step 5: Solve for x
x = 12,654,031,353.95/129,329.30 - Step 6: Final answer
x = 97,843.50
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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.