Finding the Fourth Proportional to 97,897.74, 146,697.09 and 72,816.49
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Solution
The fourth proportional to 97,897.74, 146,697.09 and 72,816.49 is: 109,113.52
Step by Step Solution
- Step 1: Write the proportion equation
97,897.74 : 146,697.09 = 72,816.49 : x - Step 2: Convert to fraction form
97,897.74/146,697.09 = 72,816.49/x - Step 3: Cross multiply
97,897.74x = 146,697.09 × 72,816.49 - Step 4: Simplify right side
97,897.74x = 10,681,967,187.01 - Step 5: Solve for x
x = 10,681,967,187.01/97,897.74 - Step 6: Final answer
x = 109,113.52
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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.