Finding the Fourth Proportional to 119,864.18, 165,474.76 and 87,562.53
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Solution
The fourth proportional to 119,864.18, 165,474.76 and 87,562.53 is: 120,881.72
Step by Step Solution
- Step 1: Write the proportion equation
119,864.18 : 165,474.76 = 87,562.53 : x - Step 2: Convert to fraction form
119,864.18/165,474.76 = 87,562.53/x - Step 3: Cross multiply
119,864.18x = 165,474.76 × 87,562.53 - Step 4: Simplify right side
119,864.18x = 14,489,388,636.74 - Step 5: Solve for x
x = 14,489,388,636.74/119,864.18 - Step 6: Final answer
x = 120,881.72
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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.