Finding the Fourth Proportional to 124,803.20, 172,228.11 and 68,214.98
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Solution
The fourth proportional to 124,803.20, 172,228.11 and 68,214.98 is: 94,136.50
Step by Step Solution
- Step 1: Write the proportion equation
124,803.20 : 172,228.11 = 68,214.98 : x - Step 2: Convert to fraction form
124,803.20/172,228.11 = 68,214.98/x - Step 3: Cross multiply
124,803.20x = 172,228.11 × 68,214.98 - Step 4: Simplify right side
124,803.20x = 11,748,536,217.95 - Step 5: Solve for x
x = 11,748,536,217.95/124,803.20 - Step 6: Final answer
x = 94,136.50
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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.