Finding the Fourth Proportional to 113,865.21, 157,133.97 and 63,564.21
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Solution
The fourth proportional to 113,865.21, 157,133.97 and 63,564.21 is: 87,718.60
Step by Step Solution
- Step 1: Write the proportion equation
113,865.21 : 157,133.97 = 63,564.21 : x - Step 2: Convert to fraction form
113,865.21/157,133.97 = 63,564.21/x - Step 3: Cross multiply
113,865.21x = 157,133.97 × 63,564.21 - Step 4: Simplify right side
113,865.21x = 9,988,096,667.21 - Step 5: Solve for x
x = 9,988,096,667.21/113,865.21 - Step 6: Final answer
x = 87,718.60
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1.5x scale
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.