Finding the Fourth Proportional to 140,031.84, 193,244.64 and 76,368.26
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Solution
The fourth proportional to 140,031.84, 193,244.64 and 76,368.26 is: 105,388.58
Step by Step Solution
- Step 1: Write the proportion equation
140,031.84 : 193,244.64 = 76,368.26 : x - Step 2: Convert to fraction form
140,031.84/193,244.64 = 76,368.26/x - Step 3: Cross multiply
140,031.84x = 193,244.64 × 76,368.26 - Step 4: Simplify right side
140,031.84x = 14,757,756,911.13 - Step 5: Solve for x
x = 14,757,756,911.13/140,031.84 - Step 6: Final answer
x = 105,388.58
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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.