Finding the Fourth Proportional to 157,174.14, 216,904.50 and 85,558.98
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Solution
The fourth proportional to 157,174.14, 216,904.50 and 85,558.98 is: 118,073.67
Step by Step Solution
- Step 1: Write the proportion equation
157,174.14 : 216,904.50 = 85,558.98 : x - Step 2: Convert to fraction form
157,174.14/216,904.50 = 85,558.98/x - Step 3: Cross multiply
157,174.14x = 216,904.50 × 85,558.98 - Step 4: Simplify right side
157,174.14x = 18,558,127,777.41 - Step 5: Solve for x
x = 18,558,127,777.41/157,174.14 - Step 6: Final answer
x = 118,073.67
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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.