Finding the Fourth Proportional to 158,822.37, 219,178.41 and 87,202.68
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Solution
The fourth proportional to 158,822.37, 219,178.41 and 87,202.68 is: 120,341.63
Step by Step Solution
- Step 1: Write the proportion equation
158,822.37 : 219,178.41 = 87,202.68 : x - Step 2: Convert to fraction form
158,822.37/219,178.41 = 87,202.68/x - Step 3: Cross multiply
158,822.37x = 219,178.41 × 87,202.68 - Step 4: Simplify right side
158,822.37x = 19,112,943,601.21 - Step 5: Solve for x
x = 19,112,943,601.21/158,822.37 - Step 6: Final answer
x = 120,341.63
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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.