Finding the Fourth Proportional to 125,935.40, 188,903.10 and 102,315.80
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Solution
The fourth proportional to 125,935.40, 188,903.10 and 102,315.80 is: 153,473.70
Step by Step Solution
- Step 1: Write the proportion equation
125,935.40 : 188,903.10 = 102,315.80 : x - Step 2: Convert to fraction form
125,935.40/188,903.10 = 102,315.80/x - Step 3: Cross multiply
125,935.40x = 188,903.10 × 102,315.80 - Step 4: Simplify right side
125,935.40x = 19,327,771,798.98 - Step 5: Solve for x
x = 19,327,771,798.98/125,935.40 - Step 6: Final answer
x = 153,473.70
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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.