Finding the Fourth Proportional to 153,188.19, 211,396.67 and 85,203.70
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Solution
The fourth proportional to 153,188.19, 211,396.67 and 85,203.70 is: 117,579.42
Step by Step Solution
- Step 1: Write the proportion equation
153,188.19 : 211,396.67 = 85,203.70 : x - Step 2: Convert to fraction form
153,188.19/211,396.67 = 85,203.70/x - Step 3: Cross multiply
153,188.19x = 211,396.67 × 85,203.70 - Step 4: Simplify right side
153,188.19x = 18,011,778,451.68 - Step 5: Solve for x
x = 18,011,778,451.68/153,188.19 - Step 6: Final answer
x = 117,579.42
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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.