Finding the Fourth Proportional to 126,985.41, 175,240.11 and 70,396.79
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Solution
The fourth proportional to 126,985.41, 175,240.11 and 70,396.79 is: 97,147.70
Step by Step Solution
- Step 1: Write the proportion equation
126,985.41 : 175,240.11 = 70,396.79 : x - Step 2: Convert to fraction form
126,985.41/175,240.11 = 70,396.79/x - Step 3: Cross multiply
126,985.41x = 175,240.11 × 70,396.79 - Step 4: Simplify right side
126,985.41x = 12,336,340,347.05 - Step 5: Solve for x
x = 12,336,340,347.05/126,985.41 - Step 6: Final answer
x = 97,147.70
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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.