Finding the Fourth Proportional to 121,373.64, 181,593.90 and 73,980.14
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Solution
The fourth proportional to 121,373.64, 181,593.90 and 73,980.14 is: 110,685.82
Step by Step Solution
- Step 1: Write the proportion equation
121,373.64 : 181,593.90 = 73,980.14 : x - Step 2: Convert to fraction form
121,373.64/181,593.90 = 73,980.14/x - Step 3: Cross multiply
121,373.64x = 181,593.90 × 73,980.14 - Step 4: Simplify right side
121,373.64x = 13,434,341,237.18 - Step 5: Solve for x
x = 13,434,341,237.18/121,373.64 - Step 6: Final answer
x = 110,685.82
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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.