Finding the Fourth Proportional to 124,572.80, 186,421.80 and 85,206.80
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Solution
The fourth proportional to 124,572.80, 186,421.80 and 85,206.80 is: 127,511.02
Step by Step Solution
- Step 1: Write the proportion equation
124,572.80 : 186,421.80 = 85,206.80 : x - Step 2: Convert to fraction form
124,572.80/186,421.80 = 85,206.80/x - Step 3: Cross multiply
124,572.80x = 186,421.80 × 85,206.80 - Step 4: Simplify right side
124,572.80x = 15,884,405,028.24 - Step 5: Solve for x
x = 15,884,405,028.24/124,572.80 - Step 6: Final answer
x = 127,511.02
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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.