Finding the Fourth Proportional to 140,946.04, 194,504.08 and 77,283.68
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Solution
The fourth proportional to 140,946.04, 194,504.08 and 77,283.68 is: 106,650.68
Step by Step Solution
- Step 1: Write the proportion equation
140,946.04 : 194,504.08 = 77,283.68 : x - Step 2: Convert to fraction form
140,946.04/194,504.08 = 77,283.68/x - Step 3: Cross multiply
140,946.04x = 194,504.08 × 77,283.68 - Step 4: Simplify right side
140,946.04x = 15,031,991,077.41 - Step 5: Solve for x
x = 15,031,991,077.41/140,946.04 - Step 6: Final answer
x = 106,650.68
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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.