Finding the Fourth Proportional to 156,215.05, 215,576.97 and 84,595.19
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Solution
The fourth proportional to 156,215.05, 215,576.97 and 84,595.19 is: 116,741.47
Step by Step Solution
- Step 1: Write the proportion equation
156,215.05 : 215,576.97 = 84,595.19 : x - Step 2: Convert to fraction form
156,215.05/215,576.97 = 84,595.19/x - Step 3: Cross multiply
156,215.05x = 215,576.97 × 84,595.19 - Step 4: Simplify right side
156,215.05x = 18,236,774,736.77 - Step 5: Solve for x
x = 18,236,774,736.77/156,215.05 - Step 6: Final answer
x = 116,741.47
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1.5x scale
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.