Finding the Fourth Proportional to 159,719.40, 239,579.10 and 131,725.80
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Solution
The fourth proportional to 159,719.40, 239,579.10 and 131,725.80 is: 197,588.70
Step by Step Solution
- Step 1: Write the proportion equation
159,719.40 : 239,579.10 = 131,725.80 : x - Step 2: Convert to fraction form
159,719.40/239,579.10 = 131,725.80/x - Step 3: Cross multiply
159,719.40x = 239,579.10 × 131,725.80 - Step 4: Simplify right side
159,719.40x = 31,558,748,610.78 - Step 5: Solve for x
x = 31,558,748,610.78/159,719.40 - Step 6: Final answer
x = 197,588.70
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1.5x scale
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.