Finding the Fourth Proportional to 121,119.08, 181,671.14 and 45,202.84
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Solution
The fourth proportional to 121,119.08, 181,671.14 and 45,202.84 is: 67,801.47
Step by Step Solution
- Step 1: Write the proportion equation
121,119.08 : 181,671.14 = 45,202.84 : x - Step 2: Convert to fraction form
121,119.08/181,671.14 = 45,202.84/x - Step 3: Cross multiply
121,119.08x = 181,671.14 × 45,202.84 - Step 4: Simplify right side
121,119.08x = 8,212,051,474.04 - Step 5: Solve for x
x = 8,212,051,474.04/121,119.08 - Step 6: Final answer
x = 67,801.47
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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.