Finding the Fourth Proportional to 118,214.70, 176,890.05 and 87,110.70
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Solution
The fourth proportional to 118,214.70, 176,890.05 and 87,110.70 is: 130,347.72
Step by Step Solution
- Step 1: Write the proportion equation
118,214.70 : 176,890.05 = 87,110.70 : x - Step 2: Convert to fraction form
118,214.70/176,890.05 = 87,110.70/x - Step 3: Cross multiply
118,214.70x = 176,890.05 × 87,110.70 - Step 4: Simplify right side
118,214.70x = 15,409,016,078.54 - Step 5: Solve for x
x = 15,409,016,078.54/118,214.70 - Step 6: Final answer
x = 130,347.72
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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.