Finding the Fourth Proportional to 101,574.17, 140,195.68 and 67,584.09
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Solution
The fourth proportional to 101,574.17, 140,195.68 and 67,584.09 is: 93,281.56
Step by Step Solution
- Step 1: Write the proportion equation
101,574.17 : 140,195.68 = 67,584.09 : x - Step 2: Convert to fraction form
101,574.17/140,195.68 = 67,584.09/x - Step 3: Cross multiply
101,574.17x = 140,195.68 × 67,584.09 - Step 4: Simplify right side
101,574.17x = 9,474,997,454.73 - Step 5: Solve for x
x = 9,474,997,454.73/101,574.17 - Step 6: Final answer
x = 93,281.56
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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.