Finding the Fourth Proportional to 126,909.24, 175,132.14 and 70,320.12
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Solution
The fourth proportional to 126,909.24, 175,132.14 and 70,320.12 is: 97,040.32
Step by Step Solution
- Step 1: Write the proportion equation
126,909.24 : 175,132.14 = 70,320.12 : x - Step 2: Convert to fraction form
126,909.24/175,132.14 = 70,320.12/x - Step 3: Cross multiply
126,909.24x = 175,132.14 × 70,320.12 - Step 4: Simplify right side
126,909.24x = 12,315,313,100.66 - Step 5: Solve for x
x = 12,315,313,100.66/126,909.24 - Step 6: Final answer
x = 97,040.32
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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.