Finding the Fourth Proportional to 130,503.87, 195,756.96 and 51,618.09
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Solution
The fourth proportional to 130,503.87, 195,756.96 and 51,618.09 is: 77,427.59
Step by Step Solution
- Step 1: Write the proportion equation
130,503.87 : 195,756.96 = 51,618.09 : x - Step 2: Convert to fraction form
130,503.87/195,756.96 = 51,618.09/x - Step 3: Cross multiply
130,503.87x = 195,756.96 × 51,618.09 - Step 4: Simplify right side
130,503.87x = 10,104,600,379.41 - Step 5: Solve for x
x = 10,104,600,379.41/130,503.87 - Step 6: Final answer
x = 77,427.59
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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.