Finding the Fourth Proportional to 117,905.40, 176,746.92 and 58,685.09
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Solution
The fourth proportional to 117,905.40, 176,746.92 and 58,685.09 is: 87,972.29
Step by Step Solution
- Step 1: Write the proportion equation
117,905.40 : 176,746.92 = 58,685.09 : x - Step 2: Convert to fraction form
117,905.40/176,746.92 = 58,685.09/x - Step 3: Cross multiply
117,905.40x = 176,746.92 × 58,685.09 - Step 4: Simplify right side
117,905.40x = 10,372,408,023.69 - Step 5: Solve for x
x = 10,372,408,023.69/117,905.40 - Step 6: Final answer
x = 87,972.29
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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.