Finding the Fourth Proportional to 106,457.84, 146,909.88 and 58,715.60
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Solution
The fourth proportional to 106,457.84, 146,909.88 and 58,715.60 is: 81,026.46
Step by Step Solution
- Step 1: Write the proportion equation
106,457.84 : 146,909.88 = 58,715.60 : x - Step 2: Convert to fraction form
106,457.84/146,909.88 = 58,715.60/x - Step 3: Cross multiply
106,457.84x = 146,909.88 × 58,715.60 - Step 4: Simplify right side
106,457.84x = 8,625,901,750.13 - Step 5: Solve for x
x = 8,625,901,750.13/106,457.84 - Step 6: Final answer
x = 81,026.46
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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.