Finding the Fourth Proportional to 156,919.75, 235,246.95 and 68,106.49
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Solution
The fourth proportional to 156,919.75, 235,246.95 and 68,106.49 is: 102,102.15
Step by Step Solution
- Step 1: Write the proportion equation
156,919.75 : 235,246.95 = 68,106.49 : x - Step 2: Convert to fraction form
156,919.75/235,246.95 = 68,106.49/x - Step 3: Cross multiply
156,919.75x = 235,246.95 × 68,106.49 - Step 4: Simplify right side
156,919.75x = 16,021,844,047.71 - Step 5: Solve for x
x = 16,021,844,047.71/156,919.75 - Step 6: Final answer
x = 102,102.15
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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.