Finding the Fourth Proportional to 187,269.48, 258,368.58 and 106,639.83
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Solution
The fourth proportional to 187,269.48, 258,368.58 and 106,639.83 is: 147,126.92
Step by Step Solution
- Step 1: Write the proportion equation
187,269.48 : 258,368.58 = 106,639.83 : x - Step 2: Convert to fraction form
187,269.48/258,368.58 = 106,639.83/x - Step 3: Cross multiply
187,269.48x = 258,368.58 × 106,639.83 - Step 4: Simplify right side
187,269.48x = 27,552,381,448.54 - Step 5: Solve for x
x = 27,552,381,448.54/187,269.48 - Step 6: Final answer
x = 147,126.92
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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.