Finding the Fourth Proportional to 158,237.54, 218,368.04 and 86,622.09
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Solution
The fourth proportional to 158,237.54, 218,368.04 and 86,622.09 is: 119,538.61
Step by Step Solution
- Step 1: Write the proportion equation
158,237.54 : 218,368.04 = 86,622.09 : x - Step 2: Convert to fraction form
158,237.54/218,368.04 = 86,622.09/x - Step 3: Cross multiply
158,237.54x = 218,368.04 × 86,622.09 - Step 4: Simplify right side
158,237.54x = 18,915,496,014.00 - Step 5: Solve for x
x = 18,915,496,014.00/158,237.54 - Step 6: Final answer
x = 119,538.61
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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.