Finding the Fourth Proportional to 126,371.59, 174,390.46 and 69,781.75
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Solution
The fourth proportional to 126,371.59, 174,390.46 and 69,781.75 is: 96,297.53
Step by Step Solution
- Step 1: Write the proportion equation
126,371.59 : 174,390.46 = 69,781.75 : x - Step 2: Convert to fraction form
126,371.59/174,390.46 = 69,781.75/x - Step 3: Cross multiply
126,371.59x = 174,390.46 × 69,781.75 - Step 4: Simplify right side
126,371.59x = 12,169,271,482.11 - Step 5: Solve for x
x = 12,169,271,482.11/126,371.59 - Step 6: Final answer
x = 96,297.53
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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.