Finding the Fourth Proportional to 140,558.58, 193,984.18 and 76,905.95
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Solution
The fourth proportional to 140,558.58, 193,984.18 and 76,905.95 is: 106,137.50
Step by Step Solution
- Step 1: Write the proportion equation
140,558.58 : 193,984.18 = 76,905.95 : x - Step 2: Convert to fraction form
140,558.58/193,984.18 = 76,905.95/x - Step 3: Cross multiply
140,558.58x = 193,984.18 × 76,905.95 - Step 4: Simplify right side
140,558.58x = 14,918,536,677.95 - Step 5: Solve for x
x = 14,918,536,677.95/140,558.58 - Step 6: Final answer
x = 106,137.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.