Finding the Fourth Proportional to 125,225.70, 172,811.08 and 67,866.68
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Solution
The fourth proportional to 125,225.70, 172,811.08 and 67,866.68 is: 93,655.81
Step by Step Solution
- Step 1: Write the proportion equation
125,225.70 : 172,811.08 = 67,866.68 : x - Step 2: Convert to fraction form
125,225.70/172,811.08 = 67,866.68/x - Step 3: Cross multiply
125,225.70x = 172,811.08 × 67,866.68 - Step 4: Simplify right side
125,225.70x = 11,728,114,266.81 - Step 5: Solve for x
x = 11,728,114,266.81/125,225.70 - Step 6: Final answer
x = 93,655.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.