Finding the Fourth Proportional to 130,833.12, 181,422.84 and 126,400.80
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Solution
The fourth proportional to 130,833.12, 181,422.84 and 126,400.80 is: 175,276.66
Step by Step Solution
- Step 1: Write the proportion equation
130,833.12 : 181,422.84 = 126,400.80 : x - Step 2: Convert to fraction form
130,833.12/181,422.84 = 126,400.80/x - Step 3: Cross multiply
130,833.12x = 181,422.84 × 126,400.80 - Step 4: Simplify right side
130,833.12x = 22,931,992,114.27 - Step 5: Solve for x
x = 22,931,992,114.27/130,833.12 - Step 6: Final answer
x = 175,276.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.