Finding the Fourth Proportional to 102,538.20, 153,807.30 and 97,699.80
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Solution
The fourth proportional to 102,538.20, 153,807.30 and 97,699.80 is: 146,549.70
Step by Step Solution
- Step 1: Write the proportion equation
102,538.20 : 153,807.30 = 97,699.80 : x - Step 2: Convert to fraction form
102,538.20/153,807.30 = 97,699.80/x - Step 3: Cross multiply
102,538.20x = 153,807.30 × 97,699.80 - Step 4: Simplify right side
102,538.20x = 15,026,942,448.54 - Step 5: Solve for x
x = 15,026,942,448.54/102,538.20 - Step 6: Final answer
x = 146,549.70
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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.