Finding the Fourth Proportional to 115,148.76, 172,709.46 and 40,263.18
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Solution
The fourth proportional to 115,148.76, 172,709.46 and 40,263.18 is: 60,389.99
Step by Step Solution
- Step 1: Write the proportion equation
115,148.76 : 172,709.46 = 40,263.18 : x - Step 2: Convert to fraction form
115,148.76/172,709.46 = 40,263.18/x - Step 3: Cross multiply
115,148.76x = 172,709.46 × 40,263.18 - Step 4: Simplify right side
115,148.76x = 6,953,832,075.68 - Step 5: Solve for x
x = 6,953,832,075.68/115,148.76 - Step 6: Final answer
x = 60,389.99
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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.