Finding the Fourth Proportional to 136,785.08, 205,106.16 and 61,869.44
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Solution
The fourth proportional to 136,785.08, 205,106.16 and 61,869.44 is: 92,771.84
Step by Step Solution
- Step 1: Write the proportion equation
136,785.08 : 205,106.16 = 61,869.44 : x - Step 2: Convert to fraction form
136,785.08/205,106.16 = 61,869.44/x - Step 3: Cross multiply
136,785.08x = 205,106.16 × 61,869.44 - Step 4: Simplify right side
136,785.08x = 12,689,803,259.75 - Step 5: Solve for x
x = 12,689,803,259.75/136,785.08 - Step 6: Final answer
x = 92,771.84
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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.