Finding the Fourth Proportional to 134,785.20, 202,177.80 and 51,679.20
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Solution
The fourth proportional to 134,785.20, 202,177.80 and 51,679.20 is: 77,518.80
Step by Step Solution
- Step 1: Write the proportion equation
134,785.20 : 202,177.80 = 51,679.20 : x - Step 2: Convert to fraction form
134,785.20/202,177.80 = 51,679.20/x - Step 3: Cross multiply
134,785.20x = 202,177.80 × 51,679.20 - Step 4: Simplify right side
134,785.20x = 10,448,386,961.76 - Step 5: Solve for x
x = 10,448,386,961.76/134,785.20 - Step 6: Final answer
x = 77,518.80
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1.5x scale
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.