Finding the Fourth Proportional to 185,156.70, 255,515.68 and 100,273.74
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Solution
The fourth proportional to 185,156.70, 255,515.68 and 100,273.74 is: 138,377.45
Step by Step Solution
- Step 1: Write the proportion equation
185,156.70 : 255,515.68 = 100,273.74 : x - Step 2: Convert to fraction form
185,156.70/255,515.68 = 100,273.74/x - Step 3: Cross multiply
185,156.70x = 255,515.68 × 100,273.74 - Step 4: Simplify right side
185,156.70x = 25,621,512,862.24 - Step 5: Solve for x
x = 25,621,512,862.24/185,156.70 - Step 6: Final answer
x = 138,377.45
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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.