Finding the Fourth Proportional to 140,506.20, 193,901.40 and 76,848.09
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Solution
The fourth proportional to 140,506.20, 193,901.40 and 76,848.09 is: 106,051.92
Step by Step Solution
- Step 1: Write the proportion equation
140,506.20 : 193,901.40 = 76,848.09 : x - Step 2: Convert to fraction form
140,506.20/193,901.40 = 76,848.09/x - Step 3: Cross multiply
140,506.20x = 193,901.40 × 76,848.09 - Step 4: Simplify right side
140,506.20x = 14,900,952,238.33 - Step 5: Solve for x
x = 14,900,952,238.33/140,506.20 - Step 6: Final answer
x = 106,051.92
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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.