Finding the Fourth Proportional to 121,215.49, 167,276.67 and 70,913.41
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Solution
The fourth proportional to 121,215.49, 167,276.67 and 70,913.41 is: 97,860.09
Step by Step Solution
- Step 1: Write the proportion equation
121,215.49 : 167,276.67 = 70,913.41 : x - Step 2: Convert to fraction form
121,215.49/167,276.67 = 70,913.41/x - Step 3: Cross multiply
121,215.49x = 167,276.67 × 70,913.41 - Step 4: Simplify right side
121,215.49x = 11,862,159,083.14 - Step 5: Solve for x
x = 11,862,159,083.14/121,215.49 - Step 6: Final answer
x = 97,860.09
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1.5x scale
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.