Finding the Fourth Proportional to 121,410.07, 167,547.99 and 66,968.50
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Solution
The fourth proportional to 121,410.07, 167,547.99 and 66,968.50 is: 92,417.68
Step by Step Solution
- Step 1: Write the proportion equation
121,410.07 : 167,547.99 = 66,968.50 : x - Step 2: Convert to fraction form
121,410.07/167,547.99 = 66,968.50/x - Step 3: Cross multiply
121,410.07x = 167,547.99 × 66,968.50 - Step 4: Simplify right side
121,410.07x = 11,220,437,568.32 - Step 5: Solve for x
x = 11,220,437,568.32/121,410.07 - Step 6: Final answer
x = 92,417.68
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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.