Finding the Fourth Proportional to 156,757.12, 216,199.74 and 103,097.26
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Solution
The fourth proportional to 156,757.12, 216,199.74 and 103,097.26 is: 142,191.95
Step by Step Solution
- Step 1: Write the proportion equation
156,757.12 : 216,199.74 = 103,097.26 : x - Step 2: Convert to fraction form
156,757.12/216,199.74 = 103,097.26/x - Step 3: Cross multiply
156,757.12x = 216,199.74 × 103,097.26 - Step 4: Simplify right side
156,757.12x = 22,289,600,806.71 - Step 5: Solve for x
x = 22,289,600,806.71/156,757.12 - Step 6: Final answer
x = 142,191.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.