Finding the Fourth Proportional to 129,031.80, 193,547.70 and 110,599.80
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Solution
The fourth proportional to 129,031.80, 193,547.70 and 110,599.80 is: 165,899.70
Step by Step Solution
- Step 1: Write the proportion equation
129,031.80 : 193,547.70 = 110,599.80 : x - Step 2: Convert to fraction form
129,031.80/193,547.70 = 110,599.80/x - Step 3: Cross multiply
129,031.80x = 193,547.70 × 110,599.80 - Step 4: Simplify right side
129,031.80x = 21,406,336,910.46 - Step 5: Solve for x
x = 21,406,336,910.46/129,031.80 - Step 6: Final answer
x = 165,899.70
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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.