Finding the Fourth Proportional to 124,811.80, 187,217.70 and 118,979.80
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Solution
The fourth proportional to 124,811.80, 187,217.70 and 118,979.80 is: 178,469.70
Step by Step Solution
- Step 1: Write the proportion equation
124,811.80 : 187,217.70 = 118,979.80 : x - Step 2: Convert to fraction form
124,811.80/187,217.70 = 118,979.80/x - Step 3: Cross multiply
124,811.80x = 187,217.70 × 118,979.80 - Step 4: Simplify right side
124,811.80x = 22,275,124,502.46 - Step 5: Solve for x
x = 22,275,124,502.46/124,811.80 - Step 6: Final answer
x = 178,469.70
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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.