Finding the Fourth Proportional to 165,393.60, 248,031.36 and 71,877.12
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Solution
The fourth proportional to 165,393.60, 248,031.36 and 71,877.12 is: 107,790.02
Step by Step Solution
- Step 1: Write the proportion equation
165,393.60 : 248,031.36 = 71,877.12 : x - Step 2: Convert to fraction form
165,393.60/248,031.36 = 71,877.12/x - Step 3: Cross multiply
165,393.60x = 248,031.36 × 71,877.12 - Step 4: Simplify right side
165,393.60x = 17,827,779,826.48 - Step 5: Solve for x
x = 17,827,779,826.48/165,393.60 - Step 6: Final answer
x = 107,790.02
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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.