Finding the Fourth Proportional to 121,317.06, 167,418.21 and 70,359.99
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Solution
The fourth proportional to 121,317.06, 167,418.21 and 70,359.99 is: 97,097.17
Step by Step Solution
- Step 1: Write the proportion equation
121,317.06 : 167,418.21 = 70,359.99 : x - Step 2: Convert to fraction form
121,317.06/167,418.21 = 70,359.99/x - Step 3: Cross multiply
121,317.06x = 167,418.21 × 70,359.99 - Step 4: Simplify right side
121,317.06x = 11,779,543,581.42 - Step 5: Solve for x
x = 11,779,543,581.42/121,317.06 - Step 6: Final answer
x = 97,097.17
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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.