Finding the Fourth Proportional to 153,142.21, 211,341.39 and 84,234.59
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Solution
The fourth proportional to 153,142.21, 211,341.39 and 84,234.59 is: 116,246.56
Step by Step Solution
- Step 1: Write the proportion equation
153,142.21 : 211,341.39 = 84,234.59 : x - Step 2: Convert to fraction form
153,142.21/211,341.39 = 84,234.59/x - Step 3: Cross multiply
153,142.21x = 211,341.39 × 84,234.59 - Step 4: Simplify right side
153,142.21x = 17,802,254,756.62 - Step 5: Solve for x
x = 17,802,254,756.62/153,142.21 - Step 6: Final answer
x = 116,246.56
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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.