Finding the Fourth Proportional to 107,661.86, 161,438.50 and 62,697.74
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Solution
The fourth proportional to 107,661.86, 161,438.50 and 62,697.74 is: 94,014.99
Step by Step Solution
- Step 1: Write the proportion equation
107,661.86 : 161,438.50 = 62,697.74 : x - Step 2: Convert to fraction form
107,661.86/161,438.50 = 62,697.74/x - Step 3: Cross multiply
107,661.86x = 161,438.50 × 62,697.74 - Step 4: Simplify right side
107,661.86x = 10,121,829,098.99 - Step 5: Solve for x
x = 10,121,829,098.99/107,661.86 - Step 6: Final answer
x = 94,014.99
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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.