Finding the Fourth Proportional to 106,438.84, 159,663.12 and 36,318.76
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Solution
The fourth proportional to 106,438.84, 159,663.12 and 36,318.76 is: 54,479.80
Step by Step Solution
- Step 1: Write the proportion equation
106,438.84 : 159,663.12 = 36,318.76 : x - Step 2: Convert to fraction form
106,438.84/159,663.12 = 36,318.76/x - Step 3: Cross multiply
106,438.84x = 159,663.12 × 36,318.76 - Step 4: Simplify right side
106,438.84x = 5,798,766,536.13 - Step 5: Solve for x
x = 5,798,766,536.13/106,438.84 - Step 6: Final answer
x = 54,479.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.