Finding the Fourth Proportional to 113,009.30, 169,109.21 and 97,864.32
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Solution
The fourth proportional to 113,009.30, 169,109.21 and 97,864.32 is: 146,445.99
Step by Step Solution
- Step 1: Write the proportion equation
113,009.30 : 169,109.21 = 97,864.32 : x - Step 2: Convert to fraction form
113,009.30/169,109.21 = 97,864.32/x - Step 3: Cross multiply
113,009.30x = 169,109.21 × 97,864.32 - Step 4: Simplify right side
113,009.30x = 16,549,758,087.05 - Step 5: Solve for x
x = 16,549,758,087.05/113,009.30 - Step 6: Final answer
x = 146,445.99
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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.