Finding the Fourth Proportional to 153,028.15, 211,173.79 and 84,117.84
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Solution
The fourth proportional to 153,028.15, 211,173.79 and 84,117.84 is: 116,079.84
Step by Step Solution
- Step 1: Write the proportion equation
153,028.15 : 211,173.79 = 84,117.84 : x - Step 2: Convert to fraction form
153,028.15/211,173.79 = 84,117.84/x - Step 3: Cross multiply
153,028.15x = 211,173.79 × 84,117.84 - Step 4: Simplify right side
153,028.15x = 17,763,483,549.87 - Step 5: Solve for x
x = 17,763,483,549.87/153,028.15 - Step 6: Final answer
x = 116,079.84
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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.