Finding the Fourth Proportional to 171,875.70, 257,878.35 and 83,207.70
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Solution
The fourth proportional to 171,875.70, 257,878.35 and 83,207.70 is: 124,842.92
Step by Step Solution
- Step 1: Write the proportion equation
171,875.70 : 257,878.35 = 83,207.70 : x - Step 2: Convert to fraction form
171,875.70/257,878.35 = 83,207.70/x - Step 3: Cross multiply
171,875.70x = 257,878.35 × 83,207.70 - Step 4: Simplify right side
171,875.70x = 21,457,464,383.30 - Step 5: Solve for x
x = 21,457,464,383.30/171,875.70 - Step 6: Final answer
x = 124,842.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.