Finding the Fourth Proportional to 157,207.11, 216,875.72 and 106,203.44
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Solution
The fourth proportional to 157,207.11, 216,875.72 and 106,203.44 is: 146,513.39
Step by Step Solution
- Step 1: Write the proportion equation
157,207.11 : 216,875.72 = 106,203.44 : x - Step 2: Convert to fraction form
157,207.11/216,875.72 = 106,203.44/x - Step 3: Cross multiply
157,207.11x = 216,875.72 × 106,203.44 - Step 4: Simplify right side
157,207.11x = 23,032,946,697.61 - Step 5: Solve for x
x = 23,032,946,697.61/157,207.11 - Step 6: Final answer
x = 146,513.39
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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.