Finding the Fourth Proportional to 131,607.19, 181,617.93 and 71,177.84
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Solution
The fourth proportional to 131,607.19, 181,617.93 and 71,177.84 is: 98,225.42
Step by Step Solution
- Step 1: Write the proportion equation
131,607.19 : 181,617.93 = 71,177.84 : x - Step 2: Convert to fraction form
131,607.19/181,617.93 = 71,177.84/x - Step 3: Cross multiply
131,607.19x = 181,617.93 × 71,177.84 - Step 4: Simplify right side
131,607.19x = 12,927,171,735.65 - Step 5: Solve for x
x = 12,927,171,735.65/131,607.19 - Step 6: Final answer
x = 98,225.42
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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.