Finding the Fourth Proportional to 158,945.42, 219,346.18 and 87,326.94
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Solution
The fourth proportional to 158,945.42, 219,346.18 and 87,326.94 is: 120,512.00
Step by Step Solution
- Step 1: Write the proportion equation
158,945.42 : 219,346.18 = 87,326.94 : x - Step 2: Convert to fraction form
158,945.42/219,346.18 = 87,326.94/x - Step 3: Cross multiply
158,945.42x = 219,346.18 × 87,326.94 - Step 4: Simplify right side
158,945.42x = 19,154,830,700.09 - Step 5: Solve for x
x = 19,154,830,700.09/158,945.42 - Step 6: Final answer
x = 120,512.00
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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.