Finding the Fourth Proportional to 126,318.90, 174,317.49 and 72,602.52
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Solution
The fourth proportional to 126,318.90, 174,317.49 and 72,602.52 is: 100,189.99
Step by Step Solution
- Step 1: Write the proportion equation
126,318.90 : 174,317.49 = 72,602.52 : x - Step 2: Convert to fraction form
126,318.90/174,317.49 = 72,602.52/x - Step 3: Cross multiply
126,318.90x = 174,317.49 × 72,602.52 - Step 4: Simplify right side
126,318.90x = 12,655,889,054.07 - Step 5: Solve for x
x = 12,655,889,054.07/126,318.90 - Step 6: Final answer
x = 100,189.99
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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.