Finding the Fourth Proportional to 159,681.24, 220,357.13 and 87,084.99
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Solution
The fourth proportional to 159,681.24, 220,357.13 and 87,084.99 is: 120,175.66
Step by Step Solution
- Step 1: Write the proportion equation
159,681.24 : 220,357.13 = 87,084.99 : x - Step 2: Convert to fraction form
159,681.24/220,357.13 = 87,084.99/x - Step 3: Cross multiply
159,681.24x = 220,357.13 × 87,084.99 - Step 4: Simplify right side
159,681.24x = 19,189,798,027.05 - Step 5: Solve for x
x = 19,189,798,027.05/159,681.24 - Step 6: Final answer
x = 120,175.66
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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.