Finding the Fourth Proportional to 158,272.53, 218,415.99 and 86,652.53
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Solution
The fourth proportional to 158,272.53, 218,415.99 and 86,652.53 is: 119,580.44
Step by Step Solution
- Step 1: Write the proportion equation
158,272.53 : 218,415.99 = 86,652.53 : x - Step 2: Convert to fraction form
158,272.53/218,415.99 = 86,652.53/x - Step 3: Cross multiply
158,272.53x = 218,415.99 × 86,652.53 - Step 4: Simplify right side
158,272.53x = 18,926,299,406.47 - Step 5: Solve for x
x = 18,926,299,406.47/158,272.53 - Step 6: Final answer
x = 119,580.44
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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.