Finding the Fourth Proportional to 135,697.06, 187,139.34 and 84,714.49
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Solution
The fourth proportional to 135,697.06, 187,139.34 and 84,714.49 is: 116,829.46
Step by Step Solution
- Step 1: Write the proportion equation
135,697.06 : 187,139.34 = 84,714.49 : x - Step 2: Convert to fraction form
135,697.06/187,139.34 = 84,714.49/x - Step 3: Cross multiply
135,697.06x = 187,139.34 × 84,714.49 - Step 4: Simplify right side
135,697.06x = 15,853,413,747.04 - Step 5: Solve for x
x = 15,853,413,747.04/135,697.06 - Step 6: Final answer
x = 116,829.46
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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.