Finding the Fourth Proportional to 101,354.96, 139,854.97 and 57,747.94
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Solution
The fourth proportional to 101,354.96, 139,854.97 and 57,747.94 is: 79,683.68
Step by Step Solution
- Step 1: Write the proportion equation
101,354.96 : 139,854.97 = 57,747.94 : x - Step 2: Convert to fraction form
101,354.96/139,854.97 = 57,747.94/x - Step 3: Cross multiply
101,354.96x = 139,854.97 × 57,747.94 - Step 4: Simplify right side
101,354.96x = 8,076,336,416.26 - Step 5: Solve for x
x = 8,076,336,416.26/101,354.96 - Step 6: Final answer
x = 79,683.68
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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.