Finding the Fourth Proportional to 140,457.96, 193,830.66 and 76,795.08
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Solution
The fourth proportional to 140,457.96, 193,830.66 and 76,795.08 is: 105,976.49
Step by Step Solution
- Step 1: Write the proportion equation
140,457.96 : 193,830.66 = 76,795.08 : x - Step 2: Convert to fraction form
140,457.96/193,830.66 = 76,795.08/x - Step 3: Cross multiply
140,457.96x = 193,830.66 × 76,795.08 - Step 4: Simplify right side
140,457.96x = 14,885,241,041.15 - Step 5: Solve for x
x = 14,885,241,041.15/140,457.96 - Step 6: Final answer
x = 105,976.49
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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.