Finding the Fourth Proportional to 140,775.24, 194,269.88 and 77,114.08
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Solution
The fourth proportional to 140,775.24, 194,269.88 and 77,114.08 is: 106,417.46
Step by Step Solution
- Step 1: Write the proportion equation
140,775.24 : 194,269.88 = 77,114.08 : x - Step 2: Convert to fraction form
140,775.24/194,269.88 = 77,114.08/x - Step 3: Cross multiply
140,775.24x = 194,269.88 × 77,114.08 - Step 4: Simplify right side
140,775.24x = 14,980,943,067.91 - Step 5: Solve for x
x = 14,980,943,067.91/140,775.24 - Step 6: Final answer
x = 106,417.46
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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.