Finding the Fourth Proportional to 153,119.76, 211,314.84 and 85,151.94
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Solution
The fourth proportional to 153,119.76, 211,314.84 and 85,151.94 is: 117,515.00
Step by Step Solution
- Step 1: Write the proportion equation
153,119.76 : 211,314.84 = 85,151.94 : x - Step 2: Convert to fraction form
153,119.76/211,314.84 = 85,151.94/x - Step 3: Cross multiply
153,119.76x = 211,314.84 × 85,151.94 - Step 4: Simplify right side
153,119.76x = 17,993,868,576.79 - Step 5: Solve for x
x = 17,993,868,576.79/153,119.76 - Step 6: Final answer
x = 117,515.00
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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.