Finding the Fourth Proportional to 119,306.13, 178,963.53 and 39,346.06
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Solution
The fourth proportional to 119,306.13, 178,963.53 and 39,346.06 is: 59,020.52
Step by Step Solution
- Step 1: Write the proportion equation
119,306.13 : 178,963.53 = 39,346.06 : x - Step 2: Convert to fraction form
119,306.13/178,963.53 = 39,346.06/x - Step 3: Cross multiply
119,306.13x = 178,963.53 × 39,346.06 - Step 4: Simplify right side
119,306.13x = 7,041,509,529.79 - Step 5: Solve for x
x = 7,041,509,529.79/119,306.13 - Step 6: Final answer
x = 59,020.52
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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.