Finding the Fourth Proportional to 153,929.09, 230,705.01 and 87,425.19
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Solution
The fourth proportional to 153,929.09, 230,705.01 and 87,425.19 is: 131,030.65
Step by Step Solution
- Step 1: Write the proportion equation
153,929.09 : 230,705.01 = 87,425.19 : x - Step 2: Convert to fraction form
153,929.09/230,705.01 = 87,425.19/x - Step 3: Cross multiply
153,929.09x = 230,705.01 × 87,425.19 - Step 4: Simplify right side
153,929.09x = 20,169,429,333.20 - Step 5: Solve for x
x = 20,169,429,333.20/153,929.09 - Step 6: Final answer
x = 131,030.65
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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.