Finding the Fourth Proportional to 139,510.92, 209,309.58 and 48,334.08
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Solution
The fourth proportional to 139,510.92, 209,309.58 and 48,334.08 is: 72,516.09
Step by Step Solution
- Step 1: Write the proportion equation
139,510.92 : 209,309.58 = 48,334.08 : x - Step 2: Convert to fraction form
139,510.92/209,309.58 = 48,334.08/x - Step 3: Cross multiply
139,510.92x = 209,309.58 × 48,334.08 - Step 4: Simplify right side
139,510.92x = 10,116,785,984.49 - Step 5: Solve for x
x = 10,116,785,984.49/139,510.92 - Step 6: Final answer
x = 72,516.09
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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.