Finding the Fourth Proportional to 124,223.09, 171,534.42 and 120,206.15
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Solution
The fourth proportional to 124,223.09, 171,534.42 and 120,206.15 is: 165,987.59
Step by Step Solution
- Step 1: Write the proportion equation
124,223.09 : 171,534.42 = 120,206.15 : x - Step 2: Convert to fraction form
124,223.09/171,534.42 = 120,206.15/x - Step 3: Cross multiply
124,223.09x = 171,534.42 × 120,206.15 - Step 4: Simplify right side
124,223.09x = 20,619,491,363.01 - Step 5: Solve for x
x = 20,619,491,363.01/124,223.09 - Step 6: Final answer
x = 165,987.59
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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.