Finding the Fourth Proportional to 134,869.20, 202,275.45 and 68,246.70
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Solution
The fourth proportional to 134,869.20, 202,275.45 and 68,246.70 is: 102,355.70
Step by Step Solution
- Step 1: Write the proportion equation
134,869.20 : 202,275.45 = 68,246.70 : x - Step 2: Convert to fraction form
134,869.20/202,275.45 = 68,246.70/x - Step 3: Cross multiply
134,869.20x = 202,275.45 × 68,246.70 - Step 4: Simplify right side
134,869.20x = 13,804,631,953.52 - Step 5: Solve for x
x = 13,804,631,953.52/134,869.20 - Step 6: Final answer
x = 102,355.70
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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.