Finding the Fourth Proportional to 157,142.08, 216,827.35 and 102,679.84
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Solution
The fourth proportional to 157,142.08, 216,827.35 and 102,679.84 is: 141,679.41
Step by Step Solution
- Step 1: Write the proportion equation
157,142.08 : 216,827.35 = 102,679.84 : x - Step 2: Convert to fraction form
157,142.08/216,827.35 = 102,679.84/x - Step 3: Cross multiply
157,142.08x = 216,827.35 × 102,679.84 - Step 4: Simplify right side
157,142.08x = 22,263,797,605.62 - Step 5: Solve for x
x = 22,263,797,605.62/157,142.08 - Step 6: Final answer
x = 141,679.41
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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.