Finding the Fourth Proportional to 158,810.99, 219,146.09 and 87,188.54
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Solution
The fourth proportional to 158,810.99, 219,146.09 and 87,188.54 is: 120,313.00
Step by Step Solution
- Step 1: Write the proportion equation
158,810.99 : 219,146.09 = 87,188.54 : x - Step 2: Convert to fraction form
158,810.99/219,146.09 = 87,188.54/x - Step 3: Cross multiply
158,810.99x = 219,146.09 × 87,188.54 - Step 4: Simplify right side
158,810.99x = 19,107,026,102.14 - Step 5: Solve for x
x = 19,107,026,102.14/158,810.99 - Step 6: Final answer
x = 120,313.00
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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.