Finding the Fourth Proportional to 121,469.13, 181,829.88 and 79,258.41
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Solution
The fourth proportional to 121,469.13, 181,829.88 and 79,258.41 is: 118,643.70
Step by Step Solution
- Step 1: Write the proportion equation
121,469.13 : 181,829.88 = 79,258.41 : x - Step 2: Convert to fraction form
121,469.13/181,829.88 = 79,258.41/x - Step 3: Cross multiply
121,469.13x = 181,829.88 × 79,258.41 - Step 4: Simplify right side
121,469.13x = 14,411,547,179.29 - Step 5: Solve for x
x = 14,411,547,179.29/121,469.13 - Step 6: Final answer
x = 118,643.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.